2007 Buick LaCrosse 3800 CMP Issues
Hello everyone, I’ve been having mysterious issues concerning the Camshaft Position Sensor Circuit. The CMP sensor signal has perfect waveform and about 6 volts up to the Ignition Control Module but from the ICM to the PCM the signal changes in a somewhat erratic way. This is causing my car to hesitate and sometimes stall. I have replaced the ICM twice with brand new aftermarket ones.
The Crank and Cam sensors are new along with the harness. I have also verified that I have good power and ground to the ICM and the sensors.
I will post a video of the Cam signal to the ICM (yellow line) and the signal from the ICM to the PCM (red wire).
Any ideas would be greatly appreciated.
The Crank and Cam sensors are new along with the harness. I have also verified that I have good power and ground to the ICM and the sensors.
I will post a video of the Cam signal to the ICM (yellow line) and the signal from the ICM to the PCM (red wire).
Any ideas would be greatly appreciated.
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fireclan724
Everything Electrical & Electronic
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Aug 31, 2006 06:44 PM







