Justinizme

So as the title states, my car has suddenly thrown a code 24 and 55.. I cleaned the throttle body on Friday, forgot to hook-up the coolant line underneath the throttle body itself.. car ran like CRAP all the way home due to coolant going into the plug sockets.. Dried out Friday night ran like a charm Saturday and Sunday. Fired it up this morning to come to work and it is missing like crazy at low RPM. Once it revs over 3500 or so, it seems to be fine.. It still has a little a little stutter but not nearly as bad. My question..

Do I change plugs/dry some more.. or do I change out the Knock sensor and Intake Temp sensor and go from there? That's $150 for something i'm not sure is the problem.. Idk if the codes are being thrown due to moisture, or if those are the real issues.. Any advice/help would be greatly appreciated.

Thank You
-Justin

Edit: I am currently 25 miles from home, at work, in Ohio, and it's 30 degrees outside... Is it ok to drive home?

EDIT: Here is a video...

Justinizme

Any help is much needed. Please and thank you.

Justinizme

Seriously, nobody has any helpful information?

99SC42

iTrader: (44)

Ask and you shall receive !

Justinizme

I thank you for the attempt but for some reason, when I view the PDF files, it is all just a bunch of scrambled words/letters. Do I need a different program to view it?

99SC42

iTrader: (44)

It works fine for me , i am not sure what's going on but pm me your email i can email you the links.

Justinizme

Bump for video reference now...

99SC42

iTrader: (44)

Code 24 is the intake air temp sensor faulty , on the non turbo ge engine the intake air temp sensor is part of the air flow meter.
The intake air temp. sensor is built into the volume air flow meter and senses the intake air temperature. The
structure of the sensor and connection to the ECM is the same as in the engine coolant temp.
If the ECM detects the diagnostic trouble code “24”, it operates the fail safe function in which the intake air temperature
is assumed to be 20C (68F)


Code 55 is the knock sensor

Justinizme

Now my question is... Is one code throwing the other? or are they two different issues that need fixed? Is there a way to test the knock sensor to see if it's faulty, besides spending the $100+ on a part that may not be bad?

99SC42

iTrader: (44)

Code 55
Knock sensors are fitted one each to the front and rear of the left side of the cylinder block to detect engine
knocking. This sensor contains a piezoelectric element which generates a voltage when it becomes deformed,
which occurs when the cylinder block vibrates due to knocking. If engine knocking occurs, ignition timing is retarded to suppress it.

 Open or short in No. 2 knock sensor circuit
 No. 2 knock sensor (looseness)
 ECM

99SC42

iTrader: (44)

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION

DTC 52, 53, 55 Knock Sensor Circuit
CIRCUIT DESCRIPTION

Knock sensors are fitted one each to the front and rear of the left side of the cylinder block to detect engine
knocking. This sensor contains a piezoelectric element which generates a voltage when it becomes deformed,
which occurs when the cylinder block vibrates due to knocking. If engine knocking occurs, ignition timing is retarded
to suppress it.

DTC No. Diagnostic Trouble Code Detecting Condition Trouble Area
52
No No. 1 knock sensor signal to ECM for 4 crank revolutions
with engine speed between 1,600 rpm ~ 5,200
rpm.
.
Open or short in No. 1 knock sensor circuit
.
No. 1 knock sensor (looseness)
.
ECM
53
Engine control computer (for knock control) malfunction
at engine speed between 650 rpm and 5,200 rpm.
.
ECM
55
No No. 2 knock sensor signal to ECM for 4 crank revolutions
with engine speed between 1,600 rpm ~ 5,200
rpm.
.
Open or short in No. 2 knock sensor circuit
.
No. 2 knock sensor (looseness)
.
ECM

If the ECM detects the above diagnosis conditions, it operates the fail safe function in which the corrective retard
angle value is set to the maximum value.


EG-397

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION

CIRCUIT DESCRIPTION (Cont’d)
DIAGNOSIS TROUBLE CODE DETECTION DRIVING PATTERN
Purpose of the driving pattern:

(a)
To simulate diagnostic trouble code detecting condition after diagnostic trouble code is recorded.
(b)
To check that the malfunction is corrected when the repair is completed confirming that diagnostic trouble
code is no longer detected.

EG-398

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION

DIAGNOSTIC CHART

DIAGNOSTIC CHART

WIRING DIAGRAM

EG-399

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION

INSPECTION PROCEDURE


NG OK
1 Check continuity between terminals KNK1, KNK2 of engine control module connector and body
ground.
C
OK
P 1. Connect the Check Harness A.
(See page EG-328)
2. Disconnect the engine control module connectors.
Measure resistance between terminals KNK1, KNK2 of
engine control module connector and body ground.
Resistance: 1M or higher.
Go to step .

2 Check knock sensor.
C
OK
P Disconnect knock sensor connector.
Measure resistance between the knock sensor terminal
and body.
Resistance: 1 M or higher.
Replace knock sensor (See page EG-241).
OK
NG



EG-400

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION

3 Check for open and short in harness and connectors between engine control module and knock
sensor (See page IN-33).
Repair or replace harness or connector.

OK
NG
4 Does malfunction disappear when a good knock sensor is installed?
NO
YES
Replace knock sensor (See page EG-241).

Check and replace engine control module.



EG-401

2JZ-GE ENGINE TROUBLESHOOTING -
CIRCUIT INSPECTION