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Hi there. I have a 2000 Chrysler Cirrus with the 4 cyl engine. About 7000 miles ago the engine light came on. Code was intermittent loss of CMP or CKP (crank and cam sensor position. I replaced both sensors and the problem still exists....hesitates and misses when you step on the gas but only when you first start out when warm problem seems to go away... Also the car is extremely hard on fuel.... Now when driving the car for awhile and its at operating temp. you go to a stop light the car quits. Try to restart and it won't start at all.....no engine warning lights.... nothing. Wait 20 mins or more for car to cool and it starts up. I have heard these cars have problems with the PCM's??? And its darn expensive to replace because the computer has to be programmed by Chrysler and each car has its own exclusive computer??? I am hoping this isn't the problem can anyone shed light on this? Thanks in advance  

Couple of things you need to have checked first check the wiring to the 2 sensors you replaced and have a pin retintion check done also. Secondly replace your auto shutdown relay. One more thing it could be is the fuel pump going out.  

Thanks for the reply John....where is the auto shutdown relay located??  Can't see it being the fuel pump as I mentioned its hards on gas....therefore must be pumping ok??  The wires appear to be ok....the only thing I noticed however was the heat shield from the exaust above the crank sensor is rusted off....maybe the crank sensor is getting too hot??  I have asked mechanics this and they say it wouldn't hurt the sensor they are built to stand alot of heat  

also what is a pin retintion check??  I have no idea what this is?  

first off 2.0 or 2.4 engine which code did you get exactly a code will set if your timing belt is stretched to far  something like cam crank ref signal  

o2 wires have been a problem for me on 2.0 engines the exhaust gets them to hot usually when it happens it will blow the fuel pump fuse take advise from entries above unplug your engine wiring harness and your o2 sensors and check your wires one at a time with a test light or voltameter  

Ok my sons car is a 2000 with the 2.4  We were getting codes for both sensors the crank and cam shaft sensor. Replaced both same problem. Bought new fuel pump and Auto shut down relay. Now the check engine light is off and car is running a little better. The fuel sensor is under the cap near the positive terminal on the drivers side. The ASD sensor is under that in a small square box. I did continuity checks and everything. Numbers were off so I just bought new both. ($31.00) Last thing will be the PCM if light comes back on. I bought the book on the car from local auto store HELPED A LOT. Told me how to check sensors and what readings I should get. Will let you know more if light comes back on.

Eddie