How to wire 1JZ Batch fuel injection to Sequential fuel injection?
11-16-11, 10:08 AM
#1
How to wire 1JZ Batch fuel injection to Sequential fuel injection?
I am in the process of running a jumper harness on my 1.5JZ swap to run a Aristo ECU and want to run Sequential fuel injection.
I heard it has to do something with the SIGNAL wire but how and where would I wire it up?
I heard it has to do something with the SIGNAL wire but how and where would I wire it up?
Last edited by 6SOARER; 11-16-11 at 02:55 PM.
11-16-11, 02:44 PM
#3
Sorry, I am not understanding.
When you say seperate the three batch signal wires. I would seperate them and run each signal wire to each injector circuit? Is that right?
Is there a specific way I should wire them like by injector# or would it not matter?
Im looking at the Soarer pinout and pin10 is inj 1&4, pin20 inj 3&5 and pin 30 is inj 2&6. So I would add on a wire to pin 10 then run that to either injector 1 or 4, Sounds right?
When you say seperate the three batch signal wires. I would seperate them and run each signal wire to each injector circuit? Is that right?
Is there a specific way I should wire them like by injector# or would it not matter?
Im looking at the Soarer pinout and pin10 is inj 1&4, pin20 inj 3&5 and pin 30 is inj 2&6. So I would add on a wire to pin 10 then run that to either injector 1 or 4, Sounds right?
Last edited by 6SOARER; 11-16-11 at 04:58 PM.
11-17-11, 04:38 AM
#4
Currently, three signal wires come from the 1jz ecu. They each split off at the engine and run two injectors. You will have to cut one of the legs off after the split on each of these three wires so they become three single wires that each feed only one injector each.
Now you have three injectors wired up and three with no signal wire. Add three wires to the harness from ecu to engine to drive the other three injectors.
Once all injectors have a physical wire running to them from the ecu, you need to verify that each one is wired to the correct ECU pin by referencing the chart I posted above.
Now you have three injectors wired up and three with no signal wire. Add three wires to the harness from ecu to engine to drive the other three injectors.
Once all injectors have a physical wire running to them from the ecu, you need to verify that each one is wired to the correct ECU pin by referencing the chart I posted above.
11-17-11, 09:45 AM
#5
Currently, three signal wires come from the 1jz ecu. They each split off at the engine and run two injectors. You will have to cut one of the legs off after the split on each of these three wires so they become three single wires that each feed only one injector each.
Now you have three injectors wired up and three with no signal wire. Add three wires to the harness from ecu to engine to drive the other three injectors.
Once all injectors have a physical wire running to them from the ecu, you need to verify that each one is wired to the correct ECU pin by referencing the chart I posted above.
Now you have three injectors wired up and three with no signal wire. Add three wires to the harness from ecu to engine to drive the other three injectors.
Once all injectors have a physical wire running to them from the ecu, you need to verify that each one is wired to the correct ECU pin by referencing the chart I posted above.
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12-05-11, 07:47 PM
#10
NO, I screwed up 
. What happened was I labeled each wire with masking tape. While pulling the wires through the firewall hole, 4 of the labels came off the wires and so I had to guess what wires were which. And my guess was good as a blind mans guess. Only good thing I did was used red wire for the odd injectors and black for the evens.
The car starts but stalls immidiately, it wont run. How would I figure out which injector is which from the signal wires from the ECU? Or are there any other tests I can do to check which injector is which without pulling the wire harness?
I
. What happened was I labeled each wire with masking tape. While pulling the wires through the firewall hole, 4 of the labels came off the wires and so I had to guess what wires were which. And my guess was good as a blind mans guess. Only good thing I did was used red wire for the odd injectors and black for the evens.The car starts but stalls immidiately, it wont run. How would I figure out which injector is which from the signal wires from the ECU? Or are there any other tests I can do to check which injector is which without pulling the wire harness?
I
Last edited by 6SOARER; 12-05-11 at 08:01 PM.
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