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Trouble Shooting my 5sfte build - 6G Celicas Forums

Topic #95824 4 posts Started by JPATTT
So i have been slowly progressing with this build and ive ran into alot of minor problems due to past history with the car.

Currently I have everything installed but here is what I am running into.

After I installed the rx7 injectors and plugged in the AEM FIC. Car wouldn't start. just turn over. When i unhook the FIC and plug the harness into the ecu car starts extremely rough due to the bigger injectors.

Unfortunately i had to put the original injectors back in so i can move the car to a different location.

My question is exactly where do i need to start looking on my situation.

I unplugged my FIC and hooked it up to my laptop and it detects the firmware on the FIC so im pretty sure that indicates that the FIC is not faulty. Any help would be appreciate. kind of would like to have this finish before the winter hits so i can at least enjoy a little bit of time in the car.

Smaay if you have any advice greatly appreciate it.

i really wish i could be better help to you. you could try and load the base MAP in the FIC. then do the injector calculator where it auto tunes for the injectors you have.
then use the wideband to tune in while you go into boost.

2001 Celica GT-S Turbo1997 Supra TT 6speed1997 Celica 3MZ/1MZ swap1990 Celica All-Trac
Do you still have the map files for the fic. What's more unfortunate I have no readings what so ever from the fic. I'll get pics later I guess
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QUOTE (JPATTT @ Jul 23, 2015 - 8:14 AM) *
>So i have been slowly progressing with this build and ive ran into alot of minor problems due to past history with the car.

Currently I have everything installed but here is what I am running into.

After I installed the rx7 injectors and plugged in the AEM FIC. Car wouldn't start. just turn over. When i unhook the FIC and plug the harness into the ecu car starts extremely rough due to the bigger injectors.

Unfortunately i had to put the original injectors back in so i can move the car to a different location.

My question is exactly where do i need to start looking on my situation.

I unplugged my FIC and hooked it up to my laptop and it detects the firmware on the FIC so im pretty sure that indicates that the FIC is not faulty. Any help would be appreciate. kind of would like to have this finish before the winter hits so i can at least enjoy a little bit of time in the car.

Smaay if you have any advice greatly appreciate it.


I had the same problem with my AEM FIC. Use the following diagram. If all else fails take out the ECU and pop it open. All the connections are labelled on the board.