Well now that i've fixed the cam position sensor and reset the code in the computer, the car won't start unless I'm hitting the gas and if I don't it turns and then 'pops' and shuts off. After reading the other thread, I think it may be the IAC, but it stays running after I let off the gas if i can get it to start. Any ideas?
I'm Baffled..Car starting problems
- Thread starter MrGame
- Start date
the98stang
Active Member
Have you checked your fuel pressure to make sure that your pump is working correctly? Just a thought ....
how do you check your fuel pressure? because I had my suspicions about that too
LaserRed01GT
Banned
Mr Game, I don't know about your previous thread, but by any chance were you getting codes P0340 or P0344?
The CMP (camshaft postion sensor) is used to correctly time the firing (pulsing) of the fuel injectors. If you have the variable reluctance type CMP sensor(2 wire non gear driven), and the CMP sensor did not correctly pick up the cylinder sequence right away, the PCM will abandon the sequential injector firing sequence and fall back on a batch fire injector table. This means the injector is just blindly fired once for every 2 revolutions of the crank. This can cause starting and running problems obviously. The COP's are also fired by using the CMP input as part of the ignition timing strategy.
The CMP (camshaft postion sensor) is used to correctly time the firing (pulsing) of the fuel injectors. If you have the variable reluctance type CMP sensor(2 wire non gear driven), and the CMP sensor did not correctly pick up the cylinder sequence right away, the PCM will abandon the sequential injector firing sequence and fall back on a batch fire injector table. This means the injector is just blindly fired once for every 2 revolutions of the crank. This can cause starting and running problems obviously. The COP's are also fired by using the CMP input as part of the ignition timing strategy.
it was definately one of those two codes laserred you're the man! can that problem be fixed though? i took the car to the dealer because I got frustrated..I'm learning how to fix cars, but i'm not quite an A+ mechanic yet
LaserRed01GT
Banned
Based upon my experience, 9 times out of 10, those two codes point to a bad alternator, or an alternator on the way out. The low voltage will trigger the CMP codes, but there is likely nothing wrong with the CMP sesnor at all.
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