Accepted Answer

With the amount of miles on the vehicle, I would replace it if the chain is the problem. They should be able to do an inspection to see if it has went out of adjustment. You might try to find a local repair shop and ask what they would charge to inspect the timing chain.

I am sending you a list of all possable causes for this code.

Possible Causes

CMP sensor connector is damaged (check pins for damage, and for moisture) CMP sensor positive (+) circuit is open, shorted to ground or shorted to voltage CMP sensor negative (-) circuit is open, shorted to ground or to voltage CMP sensor positive circuit shorted to the CMP sensor negative circuit CMP sensor has failed (it may be contaminated with debris or metal) CMP pulse wheel or tone wheel is damaged Loose timing chain or improper valve timing due to the timing chain jumping Loose camshaft sprocket locking bolt Loose crankshaft pulley locking bolt Timing chain installed incorrectly PCM has failed

Expert:	Jim
Pos. Feedback:	100.0 %
Accepts:
Answered:	11/4/2009

ASE Certified Technician

California smog licensed, ASE ceritied in L1, A6, A8 for over 30 years professionally