Alright 3800 gurus, I'm gonna dump a ton of info here about the problem I'm having, and any suggestions you've got are much appreciated. The problem is that the car is cranking very strong, but never starts, never even sputters. [MENTION=750]RICH17[/MENTION] and I have pretty much narrowed it down to the injectors not firing, but I have no idea why they wouldn't. I did just have the motor and trans out, but didn't change anything except some power and ground routing. Here's what I'm seeing:
Checked spark on 2 front cylinders: good
Fuel pump primes when key is turned, and for 2 seconds after starting attempt
There is pressure going into the PRJ FPR
New fuel
SES light comes on and stays on with key in ON position (verifies PCM grounded?)
PCM responds to HP Tuners (have pushed and pulled my current tune)
RPM responsive in HP Tuners on start attempt
MAF responsive in HP Tuners on start attempt (did not verify value, just saw it changing)
MAP responsive in HP Tuners on start attempt
O2 responsive in HP Tuners on start attempt
Replaced ICM and PCM, no change
The orientation of the PRJ FPR has changed, but it uses a stock Bosch style FPR in it, and from what I understand, it's orientation should have no impact.
I'm at a complete loss here, and I don't know what the hell could have suddenly caused it to not start. It ran perfectly before everything was pulled, and now I've suddenly got issues. Any ideas are appreciated. I have yet to unplug the MAF and try to start it, which is probably a long shot, but an easy and free diagnosis. If you have any other questions about the setup or diagnosis that have been performed, ask away!
Checked spark on 2 front cylinders: good
Fuel pump primes when key is turned, and for 2 seconds after starting attempt
There is pressure going into the PRJ FPR
New fuel
SES light comes on and stays on with key in ON position (verifies PCM grounded?)
PCM responds to HP Tuners (have pushed and pulled my current tune)
RPM responsive in HP Tuners on start attempt
MAF responsive in HP Tuners on start attempt (did not verify value, just saw it changing)
MAP responsive in HP Tuners on start attempt
O2 responsive in HP Tuners on start attempt
Replaced ICM and PCM, no change
The orientation of the PRJ FPR has changed, but it uses a stock Bosch style FPR in it, and from what I understand, it's orientation should have no impact.
I'm at a complete loss here, and I don't know what the hell could have suddenly caused it to not start. It ran perfectly before everything was pulled, and now I've suddenly got issues. Any ideas are appreciated. I have yet to unplug the MAF and try to start it, which is probably a long shot, but an easy and free diagnosis. If you have any other questions about the setup or diagnosis that have been performed, ask away!