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Re: Car will not start
a PCM is commonly a "i don't know whats wrong repair" i have heard as many as 9 out of 10 PCMs returned for warrenty test good. not to say its not possible, but its skeptical to me.
although i am not sure of the exact problem, here are a few things that can give a hard/no start but the car will run(basicly in order of possiblety):
1. bad ECT( the ECM uses the ECT as the primary input to determine the A/F ratio for cranking)
2. sticking IAC
3. sticking EGR
4. carbon build-up in intake(2,3, and 4 all go together, all affect amount of air entering the engine, all are affected by carbon build-up)
5. clogged injectors/low fuel pressure
6. weak battery/ other electrical problem (cables, starter)
7. bad KAM(the PCM's memory if you will, its part of the engine becoming dependent of starter fluid i beleave)
8. spark plugs/wires
9. engine mechanical problem(low compression, internal resistance, ect...)
so that said, here is what i would do: start by replacing the ECT if it has not been done before, buy a can of carb and choke cleaner and clean the throttle body, IAC, and EGR(with removing the EGR, you will also need a new EGR gasket), pull the PCM B fuse for about 15 seconds (this will reset the PCM's KAM). then try to crank at partcial throttle(not WOT, not closed throttle). total investment at this point is about $30. if that doesn't help testing of the fuel, starting, and ignition system will be needed.
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