Join Now
International Automotive Technicians Network

P0343 Diagnostic Trouble Code Discussion for October 2013

CMP Sensor Circuit High Voltage


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0343
Help Request Posted
2001 GMC Sierra 3500 SL 8.1L MIL Lamp on VIN: 3GDKC34G11
P0343: CMP Sensor Circuit High Voltage. I have this truck belongs to city street department. Cust complaint hard start intermittently, but more noticeable when hot. Got the condition to duplicate, sounded like timing way off. Ran camshaft 1X signal at PCM pin 73 (brn/wht) and started with a good 12 ...
October 23, 2013
2001 GMC Sierra 3500 SL 8.1L MIL Lamp on VIN: 3GDKC34G11
P0343: CMP Sensor Circuit High Voltage. I have this truck belongs to city street department. Cust complaint hard start intermittently, but more noticeable when hot. Got the condition to duplicate, sounded like timing way off. Ran camshaft 1X signal at PCM pin 73 (brn/wht) and started with a good 12 ...
October 23, 2013