Out of the blue my 1994 XR7 4.6 will not run at closed throttle idle. Replaced IAC, TPS, CCRM, and ICM. Cannot find any vacuum leaks, I can fool it with a feeler gauge between idle stop screw and throttle return and runs fine. I used the actron OBDII and gives me a P1505 at times. I replaced the CCRM because I do not think the fan low speed is operative when it is fooled, and the idle correction when the air conditioning compressor is operating does not actuate. Any ideas?

 

have you replaced the tempature sensor yet?

 

It may be the cold weather that is affecting your engine from starting up normally.

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