I have a 2000 Firehawk with a few bolt ons. The car developed a no start condition where it will turn over but not fire. I have checked the air intake for leaks, I unplugged the MAF to see if it went bad, I replaced the Cam and Crank sensors. I tried to visually inspect the wires and didn't see any issues with them. I inspected all the spark plugs and coil packs, and the fuel pressure. The weird thing is if I disconnect the battery and let the PCM completely die it will start right up and run perfectly for about 4 starts or so. Then it seems like when the computer re-learns the starting issue comes back. None of the stuff I looked at fixed the problem. Does anyone else have any suggestions I don't know what else to try. I've spent probably 15 hours trying to fix this and I feel like a total failure.

 

check out your ignition relay...common problem

 

No codes?

 

None of the things you list would cause it not to start. Check your ignition relay as stated, check and clean your grounds, and BTW, you can reset the PCM without disconnecting the bettery - do a search on the procedure.

 

No codes, I will search on the reset procedure and relay. Thanks.

I checked all that other stuff because it was on this checklist:
http://www.hotrodlane.cc/New%20LS%20...0Not%20Run.htm

 

It was the relay. I took the Fan#2 and put it in there and it fired right up. I feel silly now for all that other work Thank you very much for the help though.

 

^i did the same thing when it happened to me last year. make sure you get the correct relay, that fan relay will burn up faster. glad i could help you out!