cold car starts fine but when hot truns over but wont start

[pc813]

i have a 98 gtp and when its cold it starts fine but after about 5 mins of running it starts wanting to stall and me rpms go to 0 and my trac light comes on and then dies but i can still here my fuel pump running sometimes and it has like a clicking sound coming from the fuel rails and i have fuel pressure but it wont start until about 15 mins later and then runs fine for about another 5 mins and then does the same thing again could somebody please help me with this problem

[richtazz]

It sounds like a bad crankshaft position sensor to me. They don't always trip a Check Engine Light, and will cause the stalling/no-start, tach dropping to zero and trac-off light you describe.

[pc813]

i replaced the cps today but still doing the same thing any other ideas

[tblake]

Remove the ignition module and bring it to autozone or advance for testing. Have them do it twice to get it nice and warm.

Have you tried a fuel pump resistor bypass yet? Check the tips and maintenance subforum.

[pc813]

is there any way that this is caused by the EVAP canister being full

[tblake]

Nope, I dont think an EVAP canister can ever fill up, your PCM commands the EVAP Purge valves open and empties the vapors back into the intake manifold.

[pc813]

i also just found out that when it shuts off and wont start back up that it is getting no spark is this symtoms of the icm going bad

[tblake]

ICM or else CPS, you changed the CPS already so the ICM is the next possible issue. Like I said just remove it and take it in for testing. No sence replacing something that isnt bad.

[pc813]

took the icm to auto zone they said that it was good. any other ideas.

[richtazz]

You could have a bad replacement CKPS (especially if the one you bought is a cheapo aftermarket brand), or the wiring to it has chaffed through or is corroded.