× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0343 Diagnostic Trouble Code Discussion for July 2011

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
2004 GMC Yukon SLE 5.3L Misfire, MIL Lamp on VIN: 1GKFK16T54
P0343: CMP Sensor Circuit High Voltage. Vehicle came in with the check engine light and hard starting. It had a bunch of codes so I cleared them and p0342 and p0200 came back as hard faults. Ive been chasing the p0342. I tested for the 12v supply to the injector as it was good . I probed the signal ...
July 08, 2011