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JV's SC300 2JZGTE BUILD

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Old 08-06-14, 08:36 AM   #61
Jv92sc
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So I found out there is no continuity from pins 52-57 for coils #1-6. I tested it with my Multimeter on Ohms and it works because it beeps when both pins are touching for continuity. So last night I ended up taking my harness off with the engine still in the SC. And this morning I will be tracing the wires one by one to see where the issue lies.

Anybody have a good pin layout for an aristo swapped 2JZGTE sc300?
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Old 08-06-14, 09:09 AM   #62
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REFERENCE INFO for JDM 2jzgte Engine - ECU PINOUT


40 Pins Plug - Configuration ( Pin Number , Symbol , Definition , Input or Output , Description )

Pin 1 - IGSW , Ignition Switch , Input , This pin is used to determine if the ignition is ON. The engine ECU is turned on by this signal. This pin is connected to battery voltage when the ignition switch is in RUN and CRANK positions.

Pin 2 - SP1 , No.1 Speed Sensor , Input , This pin is used to determine vehicle speed.Vehicle speed is used in idle control, automatic transmission shift control, speed limiting etc. Two speed sensors are used to provide a backup. This pin is connected to the combination meter speed output which outputs 4 pulses (Open collector square wave pulses) per No.1 speed sensor shaft revolution. The combination meter receives its speed signal from the No.1 speed sensor which is located on the right, rear side of automatic transmission and outputs 4 pulses (0 to Battery Voltage square wave pulses) per sensor shaft revolution.

Pin 3 - KD , Kick Down Switch , Input , This pin is used to detect when the accelerator pedal is fully depressed. Used to 'kick down' or change down a gear of automatic transmission under full throttle. This pin is Grounded by a switch that is located under the accelerator pedal that is pressed at full throttle. The Kick Down switch is open circuit when the switch is not pressed (Accelerator pedal is not fully depressed). Note: 1991-10 to 1993-08 models only, later models do not have this pin wired or a Kick Down switch installed.

Pin 4 - STP , Stop Light Switch , Input , This pin is used to detect when the brake pedal is depressed. Used to disable the automatic transmission lock up torque converter and exit deceleration fuel cut mode etc. This pin is connected to battery voltage when brake pedal is depressed, the ECU pin is open circuit when the brake pedal is not depressed.

Pin 5 - EGW , Exhaust Gas Temperature Warning Light (Catalytic Converter) , Output , This pin is used to turn ON / OFF the exhaust gas warning light. The exhaust gas warning light comes on to inform of an overheated catalytic converter. This pin is Grounded by the ECU as required to turn the exhaust gas warning light ON. Light ON = Error Condition, light OFF = Normal.

Pin 6 - W , Engine Warning Light (Check Engine Light) , Output , This pin is used to turn ON / OFF the check engine light. The check engine light comes on to inform of a detected engine issue. This pin is Grounded by the ECU as required to turn the Check Engine Light ON. The check engine light should be wired with one side of the light connected to battery voltage (Ignition Switched) and one side of the light connected to this ECU pin. Light ON = Error Condition, light OFF = Normal.

Pin 7 - R , Reverse Gear Automatic Transmission Position Indicator , Input , This pin is used to determine if the automatic transmission shifter is in the Reverse position. The engine ECU needs to energize/de-energize the automatic transmission solenoids to select the correct gear. This pin is connected to battery voltage by the automatic shifter position switch when the automatic transmission shifter is in the 'R' position.

Pin 8 - / / / / / /

Pin 9 - 2 , 2nd Gear Automatic Transmission Position Indicator , Input , This pin is used to determine if the automatic transmission shifter is in the 2nd position. The engine ECU needs to energize/de-energize the automatic transmission solenoids to select the correct gear. This pin is connected to battery voltage by the automatic shifter position switch when the automatic transmission shifter is in the '2' position.

Pin 10 - L , Low Gear Automatic Transmission Position Indicator , Input , This pin is used to determine if the automatic transmission shifter is in the L position. The engine ECU needs to energize/de-energize the automatic transmission solenoids to select the correct gear. This pin is connected to battery voltage by the automatic shifter position switch when the automatic transmission shifter is in the 'L' position.

Pin 11 - AD , Auto Drive , Input , This pin is used to signal that cruise control is ON to the engine ECU. Currently unsure what exact action the engine ECU takes based on this signal. This pin is Grounded by the Cruise Control ECU when Auto Drive is engaged.

Pin 12 - OD1 , Over Drive Disable 1 , Input , This pin is used by the Cruise Control ECU to request to disable the automatic transmission over drive gear (4th Gear). The cruise control ECU may need to change to 3rd gear from 4th gear (over drive) to maintain the desired set speed. This pin is Grounded by the Cruise Control ECU to disable the automatic transmissions over drive gear.

Pin 13 / / / / / /

Pin 14 / / / / / /

Pin 15 - ELS , Electrical Load Sense , Input , This pin is used to signal that heavy electrical loads are ON (e.g. rear demister). Heavy electrical loads place more load on the alternator and hence the engine, the engine ECU can adjust for these heavy electrical loads if it is aware of them. This pin is connected to battery voltage when a heavy electrical load is ON.

Pin 16 - TRI , Timing Retard 1? , Input , Timing Retard perhaps? , Reduced ignition time will reduce engine power which is used by the Traction Control ECU to attempt to maintain traction. This pin connects to the Traction Control ECU pin MPC. Perhaps this should be labelled TR1 and have a similar function to TR2?

Pin 17 - TT , Test Terminal , Output , This pin is used to output a diagnostic voltage dependent on throttle position, brake pedal position and automatic transmission gear position. Used to help in diagnosing issues with the TPS, brake and automatic transmission. Refer to TT section.

Pin 18 - P , Power / Normal Auto , Input , This pin is used to select Power or Normal shift patterns for the automatic transmission. Used to modify the automatic transmission shift points to make the automatic transmission shifts more performance orientated. This pin is connected to battery voltage when the Power / Normal switch is in the Power position. Pin is open circuit when the Power / Normal switch is in the Normal Position. In power mode gears are held longer and the automatic transmission will not select 1st gear when the automatic shifter is manually placed in the '2' position.

Pin 19 - TE2 , Test mode select 2 , Input , This pin is used to select the test mode during which diagnostic serial data is sent out the VF1 pin. Used to help in diagnosing issues. This pin is connected to Ground to enable test mode.

Pin 20 - TE1 , Test mode select 1 , Input , This pin is used to select the test mode during which diagnostic codes are flashed on the check engine light . Used to help in diagnosing issues. This pin is connected to Ground to enable test mode.

Pin 21 - DI , Diagnostic Indication - Fuel Pump Control , Input , This pin is used to determine if the Fuel Pump ECU is healthy. Lets the engine ECU know if the Fuel Pump ECU is healthy, if the Fuel Pump ECU is not healthy the engine ECU stops the output on the FPC pin. This pin is connected to battery voltage when the Fuel Pump ECU is healthy, the pin is open circuit when Fuel Pump ECU is not healthy.

Pin 22 - FPC , Fuel Pump Control , Output , This pin is used to signal the desired fuel pump speed to the Fuel Pump ECU. The fuel pump speed can be reduced at low load conditions to make the fuel quieter and improve fuel pump longevity. This pin outputs a 0V to 5V Pulse Width Modulated (PWM) signal which is connected to the Fuel Pump ECU to control fuel pump speed.

Pin 23 - ACMG , Air Conditioning (AC) Magnetic Clutch Relay , Output , This pin is used to turn the AC magnetic clutch relay ON. ECU control of the AC enables the AC to be turned off during hard acceleration. This pin is Grounded by the ECU as required to turn the AC magnetic clutch relay ON. One side of the AC magnetic clutch relay coil should be wired to this pin and one side of the AC magnetic clutch relay coil should be connected to battery voltage (Ignition switched) and one side of the relay coil connected to this ECU pin.

Pin 24 , M-REL , EFI Main Relay , Output , This pin is used to turn ON the Main EFI Relay which feeds power to the fuel pump, engine ECU, ISCV, engine VSVs and O2 sensor heater circuits, etc. ECU control of the main power relay allows the ECU to remain powered up after engine shutdown to fully open the ISCV. This pin is connected to battery voltage inside the ECU as required to turn the Main EFI Relay ON when the ignition switch is ON. Note that this pin continues to output voltage for a few second after the ignition has been switched off to allow the ISCV to be fully opened by the ECU for the next engine start. One side of the Main EFI Relay coil should be connected to this pin and one side of the Main EFI Relay coil should be connected to Ground.

Pin 25 / / / / / /

Pin 26 / / / / / /

Pin 27 / / / / / /

Pin 28 - OD2 , Over Drive Disable 2 , Input , This pin is used to disable the automatic transmission over drive gear (4th Gear) by a user switch. Used to enable the driver to disable the automatic transmission over drive gear (4th Gear) for towing, hills, etc. This pin is Grounded by the over drive switch to disable the automatic transmission over drive gear.

Pin 29 - CCO , Catalytic Converter Temperature Sensor , Input , This pin is used to measure the catalytic converter temperature. Used to inform the driver of an overheated catalytic converter. This pin connects to a thermistor that is installed after the catalytic converter to sense the catalytic converter temperature. One side of the thermistor should be wired to this pin and one side of the thermistor should be wired to Ground.

Pin 30 - TRO , Timing Retard 0? , Input Timing Retard perhaps? , Reduced ignition time will reduce engine power which is used by the Traction Control ECU to attempt to maintain traction. This pin connects to the Traction Control ECU pin MPR. Perhaps this should be labelled TR0 and have a similar function to TR2?

Pin 31 - +B , EFI Main Relay Switched Power , Input , This pin is used to supply switched battery power to the ECU. Used to supply power. This pin is connected to battery voltage when the Main EFI Relay is energized to supply power to the ECU. The Main EFI Relay is triggered by the engine ECU pin M-REL pin. This pin is connected inside the ECU to the +B1 pin.

Pin 32 - +B1 , EFI Main Relay Switched Power , Input , This pin is used to supply switched battery power to the ECU. Used to supply power. This pin is connected to battery voltage when the Main EFI Relay is energized to supply power to the ECU. The Main EFI Relay is triggered by the engine ECU M-REL pin. This pin is connected inside the ECU to the +B pin.

Pin 33 - BATT , Battery Power , Input , This pin is used to supply constant battery power to the ECU. Constant battery power allows the engine ECU to retain error codes, fuel trims, etc. This pin is connected to battery voltage at all times.

Pin 34 - A/C , Air Conditioning (AC) Request Signal , Input , This pin is used to request that the AC be turned ON. Having an AC request input and a separate control output allows the engine ECU to turn the AC OFF under some conditions, such as hard acceleration. This pin is connected to battery voltage to request that the AC be turned ON. The AC request signal is usually generated by the climate control ECU, however connecting this pin to battery voltage will not guarantee that the AC is turned ON.

Pin 35 / / / / / /

Pin 36 / / / / / /

Pin 37 - TR2 , Timing Retard 2 , Input , This pin is used as a signal to request that the engine ECU retard engine ignition timing. Reduced ignition time will reduce engine power which is used by the Traction Control ECU to attempt to maintain traction. This pin connects to the Traction Control ECU pin TR2.

Pin 38 - NEO , Slave Engine Speed Sensor , Output , This pin is used to supply a copy of the engine speed (NE) signal to the traction control ECU. Engine speed is a useful parameter for traction control. This pin connects to the Traction Control ECU pin NEO.

Pin 39 - VTO2 , Slave Traction Control Throttle Position Sensor , Output , This pin is used to supply a copy of the analogue traction control throttle position (VTA2) signal to the traction control ECU. The measured position of the traction control throttle is a useful parameter for traction control. This pin connects to the Traction Control ECU pin VSH.

Pin 40 - VTO1 , Slave Throttle Position Sensor , Output , This pin is used to supply a copy of the analogue throttle position signal (VTA1) to the traction control ECU. The measured position of the engine throttle is a useful parameter for traction control. This pin connects to the Traction Control ECU pin VTH.
__________________
1992 Lexus SC300 Original 5spd #586 4K9 |1 of 1601|
|2JZGTE|Aristo ECU|440's|TT Fuel Pump|BorgWarner S366 0.91A/R@14psi|LS400 BBK|Tial MV-R|Tial Q|W58|CompetitionClutch Stage 4|ARP Headstuds|3" IC & Piping|18" 350z Touring Wheels|SC400 OEM Lip|6000k HID|


1999 Toyota Tacoma X-Cab

|5VZFE|5spd|4wd|Shrockworks Front Bumper|Herculined Bed and Rocker Panels|Bilstein Adjustable 5100's|Wheelers Custom AAL|Bilstein 5125's|Deckplate mod|Magnaflow exhaust|33X10.5X15 BFG A/T|OEM 15X7's

Last edited by CatManD3W; 08-06-14 at 09:13 AM..
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Old 08-06-14, 09:10 AM   #63
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80 Pins Plug - Configuration ( Pin Number , Symbol , Definition , Input or Output , Description )

Pin 1 NCO - Over Drive Direct Clutch Speed Sensor , Input , This pin is used to detect the speed of the automatic transmission OD input shaft. Detection of the automatic transmission OD input shaft speed can be used to improve shift timing and ensure smooth gear shifts. This pin connects to the OD speed sensor located on the left, front side of the automatic transmission and outputs a number of pulses (reluctor pulses) per revolution of the OD direct clutch drum.

Pin 2 / / / / / /

Pin 3 , SP2- , No. 2 Speed Sensor , Input , This pin is used to determine vehicle speed. Vehicle speed is used in idle control, automatic transmission shift control, speed limiting etc. Two speed sensors are used to provide a backup. This pin connects to the No.2 speed sensor located on the left, rear side of the automatic transmission and outputs 4 pulses (reluctor pulses) per revolution of the automatic transmission output shaft.

Pin 4 , E11 , ECU Ground , Input , Ground Used to supply a Ground path to allow current to flow. This pin connects to Ground or the battery negative.

Pin 5 , G2- , Cam Position Sensor No.2 (Rear) , Input , This pin is used to detect the location of the intake camshaft. The engine ECU needs to know if the engine is on the compression or exhaust stroke for sequential spark and ignition, the camshaft position sensor provides this information. This pin connects to the No.2 camshaft position sensor located to the rear of the intake side of the engine head which outputs 1 pulse (reluctor pulse) per camshaft revolution. A pulse is generated slightly before the TDC on the cylinder 1 compression stroke which is used to determine the engine position for sequential ignition and fuel.

Pin 6 , G1- , Cam Position Sensor No.1 (Front) , Input , This pin is used to detect the location of the intake camshaft. The engine ECU needs to know if the engine is on the compression or exhaust stroke for sequential spark and ignition, the camshaft position sensor provides this information. This pin connects to the No.1 camshaft position sensor located to the front of the intake side of the engine head which outputs 1 pulse (reluctor pulse) per camshaft revolution. A pulse is generated slightly before the TDC on the cylinder 1 exhaust stroke which is used to determine the engine position for sequential ignition and fuel.

Pin 7 , NE- , Crank Position Sensor , Input , This pin is used to detect the speed and location of the engine crankshaft. The engine ECU needs to know the position of the engine so that it can accurately provide fuel and ignition. This pin connects to the engine crankshaft position sensor located to the lower front of the exhaust side of the engine near the alternator which outputs 12 pulses (reluctor pulses) per engine crankshaft revolution.

Pin 8 / / / / / /

Pin 9 , S2 , Automatic Transmission No.2 Shift Solenoid , Output , This pin is used to control the automatic transmission No.2 shift solenoid. The automatic transmission gear selection is controlled by electronic solenoids. This pin outputs battery voltage to turn the No.2 shift solenoid ON as required . The No.2 shift solenoid is ON in gears 2 & 3. The other side of the No.2 shift solenoid is Grounded inside the automatic transmission.

Pin 10 , S1 , Automatic Transmission No.1 Shift Solenoid , Output , This pin is used to control the automatic transmission No.1 shift solenoid. The automatic transmission gear selection is controlled by electronic solenoids. This pin outputs battery voltage to turn the No.1 shift solenoid ON as required. The No.1 shift solenoid is ON in gears 1 & 2. The other side of the No.1 shift solenoid is Grounded inside the automatic transmission.

Pin 11 / / / / / /

Pin 12 , SLT- , Automatic Transmission Line Pressure Control Solenoid , Output , This pin is used to control the automatic transmission line pressure control solenoid. The automatic transmission line pressure is controlled by an electronic solenoid. This pin in association with the SLT+ pin outputs Pulse Width Modulated (PWM) battery voltage to turn the line pressure control solenoid ON.

Pin 13 , SLN- , Automatic Transmission Accumulator Back Pressure Solenoid , Output ,This pin is used to control the automatic transmission accumulator back pressure control solenoid. The automatic transmission accumulator back pressure is controlled by an electronic solenoid. This pin is connected to Ground inside the ECU as required in a PWM fashion to control the accumulator back pressure control solenoid ON. The accumulator back pressure control solenoid should be wired with one side of the solenoid connected to battery voltage (Main EFI Relay switched) and one side of the solenoid connected to this ECU pin.

Pin 14 , SLU- , Automatic Transmission No.3 Lock Up Solenoid , Output , This pin is used to control the automatic transmission No.3 lock up control solenoid which is used to enable torque converter lock up. The automatic transmission lock up torque converter is controlled by an electronic solenoid. This pin is connected to Ground inside the ECU as required to turn the No.3 lock up solenoid ON. When the No.3 lock up solenoid is on the torque converter lock up is engaged. The No.3 lock up solenoid should be wired with one side of the solenoid connected to battery voltage (Main EFI Relay switched) and one side of the solenoid connected to this ECU pin.

Pin 15 , #60 , No. 6 Injector (Rear) , Output , This pin is used to control the No.6 fuel injector. , The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 16 , #50 , No. 5 Injector , Output , This pin is used to control the No.5 fuel injector. , The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 17 , #40 , No. 4 Injector , Output , This pin is used to control the No.4 fuel injector. The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 18 , #30 , No. 3 Injector , Output , This pin is used to control the No.3 fuel injector. The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 19 , #20 , No. 2 Injector , Output , This pin is used to control the No.2 fuel injector. The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 20 , #10 , No. 1 Injector (Front) , Output , This pin is used to control the No.1 fuel injector. The fuel injectors are electronically controlled by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the fuel injector ON. The fuel injector should be wired with one side of the solenoid connected to battery voltage (Ignition switched) and one side of the fuel injector connected to this ECU pin.

Pin 21 , NCO+ , Over Drive Direct Clutch Speed Sensor , Input , This pin is used to detect the speed of the automatic transmission O/D input shaft. The fuel injectors are electronically controlled by the engine ECU. This pin connects to the OD speed sensor located on the left, front side of the automatic transmission and outputs ? pulses (reluctor pulses) per revolution of the OD direct clutch drum.

Pin 22 / / / / / /

Pin 23 , SP2+ , No. 2 Speed Sensor , Input , This pin is used to determine vehicle speed. Vehicle speed is used in idle control, automatic transmission shift control, speed limiting etc. Two speed sensors are used to provide a backup. This pin connects to the No.2 speed sensor located on the left, rear side of the automatic transmission and outputs 4 pulses (reluctor pulses) per revolution of the automatic transmission output shaft.

Pin 24 , OIL , Automatic Transmission Oil Temperature Sensor , Input , This pin is used to measure the automatic transmission oil temperature. The automatic transmission oil temperature has a significant effect on the automatic transmissions operation, the engine ECU can compensate if the automatic transmission oil temperature is measured. This pin connects to a thermistor that is installed inside the automatic transmission to measure the automatic transmission oil temperature. One side of the thermistor should be wired to this pin and one side of the thermistor should be wired to the engine ECU pin E2 (Ground).

Pin 25 , G2 , Cam Position Sensor No.1 (Front) , Input , This pin is used to detect the location of the intake camshaft. The engine ECU needs to know if the engine is on the compression or exhaust stroke for sequential spark and ignition, the camshaft position sensor provides this information. This pin connects to the No.2 camshaft position sensor located to the rear of the intake side of the engine head which outputs 1 pulse (reluctor pulse) per camshaft revolution. A pulse is generated slightly before the TDC on the cylinder 1 compression stroke which is used to determine the engine position for sequential ignition and fuel.

Pin 26 , G1 , Cam Position Sensor No.2 (Rear) , Input , This pin is used to detect the location of the intake camshaft. The engine ECU needs to know if the engine is on the compression or exhaust stroke for sequential spark and ignition, the camshaft position sensor provides this information. This pin connects to the No.1 camshaft position sensor located to the front of the intake side of the engine head which outputs 1 pulse (reluctor pulse) per camshaft revolution. A pulse is generated slightly before the TDC on the cylinder 1 exhaust stroke which is used to determine the engine position for sequential ignition and fuel.

Pin 27 , NE , Crank Position Sensor , Input , This pin is used to detect the speed and location of the engine crankshaft. The engine ECU needs to know the position of the engine so that it can accurately provide fuel and ignition. This pin connects to the engine crankshaft position sensor located to the lower front of the exhaust side of the engine near the alternator which outputs 12 pulses (reluctor pulses) per engine crankshaft revolution.

Pin 28 / / / / / /

Pin 29 , VF1 Voltage Feedback , Output , This pin is used to output diagnostic voltages that are related to the air fuel ratio and O2 sensor as well as OBD serial data. Used to help in diagnosing issues. This pin outputs a diagnostic voltage related to fuel trim. When the engine ECU pin TE1 is connected to Ground and the TPS IDL contact is OFF (engine ECU pin IDL1 is not connected to Ground) this pin outputs 0V when the engine ECU detects a lean O2 condition and 5V when the engine ECU detects a rich O2 condition. When the engine ECU pin TE1 is connected to Ground and the TPS IDL contact is ON (engine ECU pin IDL1 is connected to Ground) this pin outputs 0V if no trouble codes are stored and 5V if trouble codes have been stored. When the engine ECU pin TE2 is connected to Ground serial OBD data is outputted by this pin.

Pin 30 / / / / / /

Pin 31 , SLT+ , Automatic Transmission Line Pressure Control Solenoid , Output , This pin is used to control the automatic transmission line pressure control solenoid. The automatic transmission line pressure is controlled by an electronic solenoid. This pin in association with the SLT- pin outputs Pulse Width Modulated (PWM) battery voltage to turn the line pressure control solenoid ON.

Pin 32 , ISC4 , Idle Speed Control Valve , Output , This pin is used to open / close the Idle Speed Control Valve (ISCV) to allow more or less air to enter the engine as required to keep the desired engine idle speed There are a large number of items that effect idle speed (e.g. engine temperature, electrical load, etc) an Idle Speed Control Valve allows the engine ECU to compensate and attempt to maintain the desired engine idle RPM. This pin is connected to Ground inside the ECU as required in a sequenced fashion with the other ISCVx pins to open / close the ISCV as required by the engine ECU. The ISCV has two power pins which should be connected to battery voltage (Main EFI Relay switched).

Pin 33 , ISC3 , Idle Speed Control Valve , Output , This pin is used to open / close the Idle Speed Control Valve (ISCV) to allow more or less air to enter the engine as required to keep the desired engine idle speed . There are a large number of items that effect idle speed (e.g. engine temperature, electrical load, etc) an Idle Speed Control Valve allows the engine ECU to compensate and attempt to maintain the desired engine idle RPM. This pin is connected to Ground inside the ECU as required in a sequenced fashion with the other ISCVx pins to open / close the ISCV as required by the engine ECU. The ISCV has two power pins which should be connected to battery voltage (Main EFI Relay switched).\

Pin 34 , ISC2 , Idle Speed Control Valve , Output , This pin is used to open / close the Idle Speed Control Valve (ISCV) to allow more or less air to enter the engine as required to keep the desired engine idle speed. There are a large number of items that effect idle speed (e.g. engine temperature, electrical load, etc) an Idle Speed Control Valve allows the engine ECU to compensate and attempt to maintain the desired engine idle RPM. This pin is connected to Ground inside the ECU as required in a sequenced fashion with the other ISCVx pins to open / close the ISCV as required by the engine ECU. The ISCV has two power pins which should be connected to battery voltage (Main EFI Relay switched).

Pin 35 , ISC1 , Idle Speed Control Valve , Output , This pin is used to open / close the Idle Speed Control Valve (ISCV) to allow more or less air to enter the engine as required to keep the desired engine idle speed There are a large number of items that effect idle speed (e.g. engine temperature, electrical load, etc) an Idle Speed Control Valve allows the engine ECU to compensate and attempt to maintain the desired engine idle RPM. This pin is connected to Ground inside the ECU as required in a sequenced fashion with the other ISCVx pins to open / close the ISCV as required by the engine ECU. The ISCV has two power pins which should be connected to battery voltage (Main EFI Relay switched).

Pin 36 / / / / / /

Pin 37 / / / / / /

Pin 38 , VSV3 , Exhaust Bypass Valve Vacuum Switching Valve , Output , This pin is used to control the VSV which is used to open / close the Exhaust Bypass Valve that is a component of the sequential turbo system. The Exhaust Bypass Valve allows exhaust gas to pre-spool the rear turbocharger prior to it coming online as part of the sequential turbo system. This pin is connected to Ground inside the ECU as required to turn the Exhaust Bypass Valve VSV ON allowing pressurized intake air to open the Exhaust Bypass Valve. One side of the VSV should be wired to this pin and one side of VSV should be wired to battery voltage (Main EFI Relay switched).

Pin 39 , VSV2 , Exhaust Gas Control Valve Vacuum Switching Valve , Output , This pin is used to control the VSV which is used to open / close the Exhaust Gas Control Valve that is a component of the sequential turbo system. The Exhaust Gas Control Valve allows exhaust gas to exit the rear turbocharger allowing it to fully come online as part of the sequential turbo system. This pin is connected to Ground inside the ECU as required to turn the Exhaust Gas Control Valve VSV ON allowing pressurized intake air to open the Exhaust Gas Control Valve. One side of the VSV should be wired to this pin and one side of VSV should be wired to battery voltage (Main EFI Relay switched).

Pin 40 , VSV1 , Intake Air Bypass Valve Vacuum Switching Valve , Output , This pin is used to control the VSV which is used to open / close the Intake Air Bypass Valve that is a component of the sequential turbo system. The Intake Air Control Valve allows pressurised air to exit the rear turbocharger allowing it to fully come online as part of the sequential turbo system. This pin is connected to Ground inside the ECU as required to turn the Intake Air Control Valve VSV ON allowing pressurised intake air to open the Intake Air Control Valve. One side of the VSV should be wired to this pin and one side of VSV should be wired to battery voltage (Main EFI Relay switched).

Pin 41 , VCC , +5V Regulated Power , Output , This pin is used to supply +5V power to the throttle position and MAP sensors. The throttle position and MAP sensors require regulated and constant +5V to operate. This pin outputs regulated +5V to the throttle position sensors and the MAP sensor.

Pin 42 , VTA2 , Traction Control Throttle Position Sensor , Input , This pin is used to detect the position of the traction control throttle. The measured position of the traction control throttle is a useful parameter for engine operation. This pin measures the variable voltage from the traction control throttle position sensor that represents how open / closed the traction control throttle is.

Pin 43 , VTA1 , Throttle Position Sensor Input , This pin is used to detect the position of the engine throttle. The measured position of the engine throttle is a useful parameter for engine operation, particularly in transient conditions such as acceleration. This pin measures the variable voltage from the throttle position sensor that represents how open / closed the throttle is.

Pin 44 , THW , Water Temperature Sensor , Input , This pin is used to measure the temperature of the engine coolant. The engine coolant temperature has a significant effect on the engines operation, for example requiring more fuel during 'warm up' conditions. This pin connects to a thermistor that is installed at the engine coolant water outlet to the radiator on the front, upper, exhaust side of the engine to measure engine coolant temperature. One side of the thermistor should be wired to this pin and one side of the thermistor should be wired to the engine ECU pin E2 (Ground).

Pin 45 , THA , Intake Air Temperature Sensor , Input , This pin is used to measure the temperature of the engine inlet manifold air. The engine air temperature has an effect on the engines operation, such as reducing ignition timing if the intake air is very hot. This pin connects to a thermistor that is installed at the middle, engine side of the engine intake manifold to the radiator on the front, upper, exhaust side of the engine to measure engine air intake temperature. One side of the thermistor should be wired to this pin and one side of the thermistor should be wired to the engine ECU pin E2 (Ground).

Pin 46 / / / / / /

Pin 47 / / / / / /

Pin 48 , OX , Oxygen Sensor , Input , This pin is used to determine the exhaust gas air fuel ratio. The engine ECU will aim for an air fuel ratio near stoichiometric (neither rich or lean) to enhance fuel economy under periods of low load. This pin connects to the signal output of the oxygen sensor that is mounted in the exhaust. The factory oxygen sensor is a 'narrow band' oxygen sensor that outputs approximately 0V when the air fuel ratio is lean and approximately 1V when the air fuel ratio is rich. The engine ECU will aim to keep the engine running at stoichiometric by alternating between very slightly rich and very slightly lean conditions, as the sensor is only a narrow band sensor this is a practical way to achieve (or very close to) the desired stoichiometric air fuel ratio.

Pin 49 , KNK2 , No.2 Knock Sensor (Rear) , Input , This pin is used to measure engine knock. Engine knock can occur if too much ignition timing and poor fuel are present, as engine knock can damage an engine the engine ECU used a knock sensor to detect and compensate for knock if is detected. This pin connects to the signal output of the knock sensor which is mounted under the intake manifold, to the rear of the engine and screwed into the side of the engine block. The knock sensor is Grounded via the engine block. 8.1kHz is the normal mode vibration.

Pin 50 , KNK1 , No.1 Knock Sensor (Front) , Input , This pin is used to measure engine knock. Engine knock can occur if too much ignition timing and poor fuel are present, as engine knock can damage an engine the engine ECU used a knock sensor to detect and compensate for knock if is detected. This pin connects to the signal output of the knock sensor which is mounted under the intake manifold, to the front of the engine and screwed into the side of the engine block. The knock sensor is Grounded via the engine block. 8.1kHz is the normal mode vibration.

Pin 51 / / / / / /

Pin 52 , IGT6 , Igniter Trigger Signal Cyl 6 (Rear) , Output , This pin is used to control the ignition for cylinder 6. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.

Pin 53 , IGT5 , Igniter Trigger Signal Cyl 5 , Output , This pin is used to control the ignition for cylinder 5. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.

Pin 54 . IGT4 , Igniter Trigger Signal Cyl 4 , Output , This pin is used to control the ignition for cylinder 4. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.

Pin 55 , IGT3 , Igniter Trigger Signal Cyl 3 , Output , This pin is used to control the ignition for cylinder 3. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.

Pin 56 , IGT2 , Igniter Trigger Signal Cyl 2 , Output , This pin is used to control the ignition for cylinder 2. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.

Pin 57 , IGT1 , Igniter Trigger Signal Cyl 1 (Front) , Output , This pin is used to control the ignition for cylinder 1. The ignition timing is electronically controlled by the engine ECU. This pin is connected to +5V inside the engine ECU as required to trigger engine ignition. Ignition is triggered after approx 4mSec of dwell on the high (+5V) to low (0V) transition.
80 Pin Plug 58 IGF Igniter Verification Signal Input This is pin is used to detect if ignition has taken place successfully. If no ignition is occurring and fuel injection continues the spark plugs can be fouled and backfires can occur in the exhaust, the igniter sends a signal to inform the engine so that it can stop fuel injection if successful ignition is not detected. This pin is connected to Ground by the Igniter for a short period of time after a successful ignition event has been detected.

Pin 59 / / / / / /

Pin 60 , PMC , Pressure Modulation Control (Wastegate) Vacuum Switching Valve , Output , This pin is used to control the VSV which controls the turbo wastegate on the front turbo. This VSV allows the engine ECU to attempt to control boost pressure. The Wastegate Control Valve allows exhaust gas to pre-spool the rear turbocharger prior to it coming online as part of the sequential turbo system. This pin is connected to Ground inside the ECU as required to turn the Pressure Modulation Control valve which is more commonly called the Wastegate control valve ON allowing pressurised intake air to be diverted away from the mechanical wastegate actuator. When this VSV is ON the mechanical wastegate actuator will not operate and the wastegate will not open, this will result in a very large amount of boost pressure being generated by the turbochargers. One side of the VSV should be wired to this pin and one side of VSV should be wired to battery voltage (Main EFI Relay switched).

Pin 61 / / / / / /

Pin 62 , PIM , Pressure Intake Manifold (MAP Sensor) , Input , This pin is used to determine the manifold air pressure (MAP). Manifold air pressure is a primary component in the speed density fuel injection control algorithm that is used, it is also used to control the sequential turbo system. This pin connects to the signal output of the MAP sensor which contains a small sensor to measure air pressure. A small vacuum hose connects the MAP sensor to the intake after the throttle body.

Pin 63 , IDL2 , Traction Control Throttle Idle Position Sensor , Input , This pin is used to detect when the traction control throttle is in the idle (fully open) position. Knowing when the throttle is fully open allows the engine ECU to have a known position allowing it to compensate for slight variation in the analogue signal. This pin is connected to Ground by a switch inside the throttle position sensor when the traction control throttle is fully open.

Pin 64 , IDL1 , Throttle Position Idle Sensor , Input , This pin is used to detect when the throttle is in the idle (fully closed) position. Knowing when the throttle is fully closed allows the engine ECU to have a known position allowing it to compensate for slight variation in the analogue signal. This pin is connected to Ground by a switch inside the throttle position sensor when the throttle is fully closed.

Pin 65 , E2 , Sensor Ground , Output , Sensor ground. The throttle position and MAP sensors have a separate ground to ensure clear signals. This pin is connected to sensor Ground inside the engine ECU. Do not connect this pin to chassis Ground.

Pin 66 / / / / / /

Pin 67 / / / / / /

Pin 68 / / / / / /

Pin 69 , E1 , ECU Ground , Input , Ground Used to supply a Ground path to allow current to flow. This pin connects to Ground or the battery negative.

Pin 70 / / / / / /

Pin 71 , HT , Oxygen Sensor Heater , Output , This pin is used to control the heater for the exhaust gas oxygen sensor. The oxygen sensor requires a certain temperature to start operating, to allow this temperature to be reached quickly and allow the oxygen sensor to start operation the sensor is heated. This pin connects to Ground inside the engine ECU as required to turn the oxygen sensor heater on. One side of the oxygen sensor heater should be wired to this pin and one side of oxygen sensor heater should be wired to battery voltage (Main EFI Relay switched).

Pin 72 / / / / / /

Pin 73 / / / / / /

Pin 74 , EVAP , Evaporative Emission Control Vacuum Switching Valve , Output , This pin is used to control the VSV which is used to allow fuel vapour from the charcoal canister to enter the intake manifold and enter the engine. Fuel vapours from the fuel tank are captured in the charcoal canister to protect the environment, the EVAP VSV is used to allow these captured emissions to be burnt during normal engine operation as determined by the engine ECU. This pin is connected to Ground inside the ECU as required to turn the Evaporative Emissions Control Valve VSV ON allowing fuel emissions to pass to the intake manifold into the engine. One side of the VSV should be wired to this pin and one side of VSV should be wired to battery voltage (Main EFI Relay switched).

Pin 75 / / / / / /

Pin 76 , NSW , Neutral & Park Switch Auto Position Indicator , Input , This pin is used to determine if the automatic transmission shifter is in the Park or Neutral positions. The engine ECU needs to energise/de-energise the automatic transmission solenoids to select the correct gear. This pin is connected to Ground by the automatic shifter position switch and the Starter Relay coil when the automatic transmission shifter is in the 'N' or 'P' positions.

Pin 77 , STA Starter Signal , Input , This pin is used to determine if the engine is being cranked. The engine ECU can take action to allow the engine to start easier if it is aware that the engine is trying to be started. This pin is connected to battery voltage when the ignition switch is in CRANK position.

Pin 78 / / / / / /

Pin 79 , E02 ECU Ground , Input , Ground Used to supply a Ground path to allow current to flow. This pin connects to Ground or the battery negative.

Pin 80 , E01 , ECU Ground , Input , Ground Used to supply a Ground path to allow current to flow. This pin connects to Ground or the battery negative.
__________________
1992 Lexus SC300 Original 5spd #586 4K9 |1 of 1601|
|2JZGTE|Aristo ECU|440's|TT Fuel Pump|BorgWarner S366 0.91A/R@14psi|LS400 BBK|Tial MV-R|Tial Q|W58|CompetitionClutch Stage 4|ARP Headstuds|3" IC & Piping|18" 350z Touring Wheels|SC400 OEM Lip|6000k HID|


1999 Toyota Tacoma X-Cab

|5VZFE|5spd|4wd|Shrockworks Front Bumper|Herculined Bed and Rocker Panels|Bilstein Adjustable 5100's|Wheelers Custom AAL|Bilstein 5125's|Deckplate mod|Magnaflow exhaust|33X10.5X15 BFG A/T|OEM 15X7's
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Old 08-06-14, 09:14 AM   #64
CatManD3W
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Your Welcome that should be all you need....

Also this thread may help you as well....

http://www.clublexus.com/forums/perf...made-easy.html

I used the above thread to make my wiring harness.....
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1992 Lexus SC300 Original 5spd #586 4K9 |1 of 1601|
|2JZGTE|Aristo ECU|440's|TT Fuel Pump|BorgWarner S366 0.91A/R@14psi|LS400 BBK|Tial MV-R|Tial Q|W58|CompetitionClutch Stage 4|ARP Headstuds|3" IC & Piping|18" 350z Touring Wheels|SC400 OEM Lip|6000k HID|


1999 Toyota Tacoma X-Cab

|5VZFE|5spd|4wd|Shrockworks Front Bumper|Herculined Bed and Rocker Panels|Bilstein Adjustable 5100's|Wheelers Custom AAL|Bilstein 5125's|Deckplate mod|Magnaflow exhaust|33X10.5X15 BFG A/T|OEM 15X7's
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Old 08-08-14, 11:00 AM   #65
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Quote:
Originally Posted by CatManD3W View Post
Your Welcome that should be all you need....

Also this thread may help you as well....

http://www.clublexus.com/forums/perf...made-easy.html

I used the above thread to make my wiring harness.....
Thanks, Just updating everyone, I am in the process of checking the wiring and the only things that were mixed were the 1st and 6th coils on the igniter plug. Everything else looks pretty good. It cranks and wants to start now, it finally gives a sputter or three, but it is still not turning on, haha at this point I'm just frustrated. I'm gonna check my grounds because I think the IGF might need a better ground if THAT's what's causing it to stutter. (I have my front ground from the harness on the intake but the intake is covered in wrinkle black so just gonna double check).
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Old 09-16-14, 01:50 PM   #66
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Just updating this thread and pointing out that the grounds are good, I have not had time to work on my car because of a trip but I am back to work on it and I sent the ECU to get checked out because the firing order for the coils and the fuel injectors are good. It still sounds like a misfire so hopefully it is the ECU that was bad. I will post a video later with an attempt that I made to start it before I sent the ECU off to get checked out. (I also did the 12v fuel pump mod but still sounds like its misfiring.

Last edited by Jv92sc; 09-16-14 at 02:29 PM..
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