1jz swap no spark...

[tercelica]

Hello, I finished putting in my 1j into my supra, but I can't get it to start. It turns over but doesn't start. I'm not getting any spark. A few guys on the forum is helping me out alot already(Thank you very much), but I still can't get it to fire up. I'm getting a Code 14 which is:

Ignition Signal
Diagnosis
* No "IGF" signal to ECU "A" times in succession.
A = 6-8 (7M-GE)
A= 3 (7M-GTE)
Trouble Area
* Igniter and ignition coil circuit
* Igniter and ignition coil
* ECU

I was told to check the IGF wire from my ignition to my ecu but I don't know which wire that is . Any help is much appreciated.

 

[Gtstarga]

With a true JZA70 you should use the 2JZ engine codes. Not sure how this will convert on a 1J swap. Just a thought may be the same code diagnostic but worth looking into.

 

[jetjock]

First confirm spark because no spark = no IGf. If you have spark but no IGf then you'll need to check the igniter and IGf wiring. If you have no spark forget about IGf and focus on your cam/crank sensors.

 

[tercelica]

I'm for sure no spark. I checked the first three coil packs, and from there i figured the next three wont work either. so no IGf?

 

[jetjock]

IGf is generated from spark so no spark, no IGf. Forget about it and move upstream. I'm not that familiar with this engine so I can't offer too much but you'll need proper cam/crank sensor signals to generate ignition. Check for +12 power to one side of the coils too. Lathrop huh? My condolences

 

[tercelica]

Alright, i'll check the coils for power also. yeah... lathrop... unfortunatly... HAHAHAHA...

 

[Rich]

Measure the 6 wires between the igniter and the ecu for conductivity, that's what "I was told to check the IGF wire from my ignition to my ecu but I don't know which wire that is" means.

Also check the plugs on the coilpacks, when they're a bit old they go brittle and break causing a bad or no connection.
Do check ALL cylinders for spark and let us know if they're all out or not.