Quote:
Originally Posted by Ez-Bone
So once I change the pissy FPD :P if that doesn't stop the problem, what else could it possibly be, ye think?
I've got my fingers crossed and prayers pronounced that it simply is the FPD causing this mess. Like, That day I drove it, it was completely fine, Started right up with no problem but just a few hours of sitting and not smoke everywhere and hard to start and keep on from a cold start. Up until this day which it will only stay on for 2 sec then die again. I tried unplugging the FPD and FPR then cranking the engine, it will turn over but still somehow (I'm assuming) floods out and dies.
Ugh, it's early, and my human DME (brian) isn't functioning well :P lol
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Well, I'd say take a couple things at a time. Replace the damper for sure. Fix the vacuum line to the regulator. Check that all the vacuum lines and connectors are intact to ensure the regulator does in fact receive correct vacuum. Check fuel pressure to make sure it is right, ruling it out as a very major cause of the symptoms you are experiencing. If there are still problems, they will probably not be exactly the same, making further troubleshooting much more productive.
Running rich doesn't have as many causes I think. The only other things I can think of off the top of my head is a very bad O2 sensor, which can be unplugged to confirm. The DME will run just fine without it. It could also be a failed coolant temp sensor, intake air temp sensor, or failed wiring pertaining to either. It could also be leaking or stuck open fuel injectors. You can pull the fuel rail leaving the injectors still attached, held over a catch pan, and crank the engine to look for a fine, even, pulsing spray pattern (with the ignition coil
primary (supply) disconnected first). When you stop cranking, look for fuel pressure bleeding off by leaking out the injector tips. The rail should hold pressure after the engine stops. Besides fuel pressure, most anything else wrong would lean it out.