dru_666 Posted September 23, 2003 Report Share Posted September 23, 2003 hi everyone, i have a 89 cutty supreme, 3.1 v6, sometimes after driving, after its warmed up, it doesnt wanna start again. i had to wait like 5 hours the other day. 2 days after that it flashed the code 45(rich exhaust) but didnt say. anyideas what this could be? also, last week the car battery went mysteriously dead (new battery). whats the regular running voltage. mine is 13.3-14.5v Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 When you mean, "wont start" do you mean it cranks and wont catch or doesnt make a sound at all when you turn the key Robby Quote Link to comment Share on other sites More sharing options...
dru_666 Posted September 23, 2003 Author Report Share Posted September 23, 2003 sorry, it will rotate/turn over just wont catch and idle. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 Alright, here are some suspects: Fuel pump Crank sensor Coils ICM So it runs fine when hot, just if you stop it, it wont start again. Does it do fine at high rpms? If so, it maybe the fuel pump. I have heard of this condition before and it ended up being the fuel pump. Check your fuel pressure with the motor hot, but turned off, but with the key in the on position. It should be around 41-47psi. That is at the schader valve on the fuel rail Robby Quote Link to comment Share on other sites More sharing options...
Redfox340 Posted September 23, 2003 Report Share Posted September 23, 2003 Could be a couple of things; let's see... If it's running rich, then the either the O2 sensor has died or is not sending a signal. Other it could be poor spark / wires, or even the ignition coil. But when it's warm it doesn't idle? Could be a weak fuel pump or fuel pressure regulator. EFI engines don't encounter vapor lock, but with a faulty pump or regulator the motor can. I would test these systems and see where / when you can isolate the situtation. Best of luck to you! - Erik EDIT: Damn you Robby, you're quick... Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 23, 2003 Report Share Posted September 23, 2003 EDIT: Damn you Robby, you're quick... Sure am! At least we said the same things........ Robby Quote Link to comment Share on other sites More sharing options...
per0781 Posted September 24, 2003 Report Share Posted September 24, 2003 EDIT: Damn you Robby, you're quick... Sure am! At least we said the same things........ Robby that's what she said too Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 24, 2003 Report Share Posted September 24, 2003 EDIT: Damn you Robby, you're quick... Sure am! At least we said the same things........ Robby that's what she said too HAHAHAHAHAHAHAAHAHHA!!!!!!!!!!!.......................ASS!!!!!! Robby Quote Link to comment Share on other sites More sharing options...
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