treefingers

iTrader: (2)

Here is what's going on, maybe someone can give me some advice?

I have a GEN IV with a GEN III PCM/Harness 4.8. Since this is probably not an issue with the engine itself, I figured it might fit in the GEN III section better?

Anyways, here is what the motor has:

Relocated LS1 Knock Sensors
Lingenfelter Reluctor Wheel Conversion Box
LS1 Intake, LS1 Fuel Injectors
TSP 224/224 581/581 112LSA Cam
LS1 Harness/VATS Deleted LS1 ECU
I am not using a MAFS.

The motor is in an older corolla, and is having difficulty starting sometimes. It's like it will spit and sputter until it fires. HOWEVER, even if I let it run for 5 seconds and turn it off, it will start perfectly the next time. I am using a switch panel, and it's possible that I'm missing something? It's strange, because when it does run, it runs flawlessly.

Any ideas?

LS1MCSS

iTrader: (18)

Is your panel killing ALL of the power to the pcm? Actually the conversion section would have been the place for this post.

treefingers

iTrader: (2)

I have power to the PCM set up on a switch that also sends power to coil packs/injectors. Thanks, I'll try to get this thread deleted and moved over to the correct forum. Thanks for your help.

joecar

Even tho this is a conversion/transplant, it should probably be moved to the PCM Diagnostics and Tuning section.