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Changed spark plugs to recommended BPU plug gapped at .25 and it still backfires/sputters. Kinda sounds like its hitting boost cut but im only running waste gate 8-9psi and it spikes to 11-13psi by 5k. I changed to my friends coils (not confirmed if good or not) but it did the same thing...

changing plugs out today to see if the ones i have are no good

Fixed problem with EFI system i just needed that day off to think and not cram or cloud my thinking. I test drove the car and I still have the problem. It isn't as bad as before, where free reving it would sputter at 5-5500 and the tach would drop. Now it does free rev to redline, BUT a few...

I have many more if anyone is willing to host them

No testing today had an emergency midway fixing car had to leave family > car

Here are some wiring diagrams i've come across & had stored

i think i may of found my issue....

\ Yea, my problem is finding the switched power. The green wire that goes to the circuit open realy works, i hear it work, but i'm having a hard time figuring out What is the trigger for the EFI, i looked at the diagrams and it just shows the EA2 connecto brown and orange ground on one side and...

EFI is getting power but it isn't passing thru the relay, i tried another relay and still didnt work, i by-passed the relay and power the EFI system with a switch and the car is started now, i am having a buddy of mine get me a fuse box to try out, maybe it is damaged on the inside not allowing...

I have, EFI fuse is getting power, i even replaced it just in case. If anyone can chime please call me 973 336 0966 its 5:30pm est now i'll be here for another 5 hours trying to figure this shit out.

Problem i have is, the AEM isn't getting powered along with the EFI circuit.

Sigh, i checked all the power & ground wires and they are fine, my problem lies with in the EFi Circuit/Circuit open relay. For some reason they are not opening up when the key is all the way on. I have to look into the body plug for this issue i assume... =/

I traced both power & ground wires, there were no issues!.... SIgh i'll be uploading pictures on what wires are used from the OEM plugs I was taking a look at this and comparing it with the body plugs & AEM ECU plugs, all is wired correctly. There is only 1 wire i have a concern with. T...

Confirmed but with pictures LS400 Clutch 7MGTE 10 Blade fan With ATi Super Damper There is plenty of room! 2J GTE/GE setup will not work as it touches the bolt for the ATi Pulley. This clears it no problem. Belt Size: 755K6 - 6PK1920 - NO AC & ATi SUPER DAMPER

No connection - No power going to the ECU Start to connect to ECU: Initialize Comms (USB) ... USB: No AEM Devices AEMTuner cannot connect to ECU. Please make sure that the ECU is powered on and check the connection cable. Try using another connection type: Serial Retrying ... Start to connect...

TRU, I'll try that tonight.

ok, i finished the harness and i guess i just f**ked myself. Now it doesn't start, i replaced the CPS' shielded wires, i checked all the ignition wires and moved the igniter next to the ECU, i removed the AC compressor plug and hardwired the AEM to my harness. Power is sent to the dash and all...

found the AEM diagrams and now i'm going to be going thru them tonight to make sure they were wired in correctly from the patch harness

Supra 1JZ... Where the bolt goes to secure it, it was broken right next to the sensor, the SECOND i pulled it out it fell apart so I think (not confirmed yet) that maybe with the reving the sensor was moving and thats what would throw everything out of wack. in the mean time i'm trying to...

Confirmed this last night GTE/GE - Fan Clutch GE - Fan Blade GTE - Water pump Fan clutch/Blade setup WILL NOT WORK WITH ATi Super Damper, It his the bolts that hold the balancer to the steel hub assembly. You would have to space out the fan blade and I did not confirm if this will work with...