2002 sunfire eco 2.2 - automatic 233K on odometer
keep getting this CEL code over and over. Runs great then all of sudden have turn it over 10 times to get it start then be fine next for a time then crank and crank to start again
I bought car with badly over heated engine. Got a used one from a junkyard out of wrecked Grand am. So have lots of extra parts.

things I've tried so far

Used
1. Map sensor
2. O2 sensor
3. Coils and ICM
4. IAT
5. fuel rail with injectors

New parts
1. Plugs
2. Fuel filter

Wasted 2 cans of starting fluid trying to find any vacuum leaks


My questions
1. Wife found a web page that said there is a TSB about the pump strainer needing changed
2. The original motor didn't have exhaust manifold to head gasket but the Grand am did I assue it was suppose to be there. Was I correct?


FYI: We bought a 2004 sunfire brand new just rolled 100k on it. Love the car so much that when I ran into this one for less then I've spent on new tires I just couldn't pass it up.