P0651 Diagnostic Trouble Code Discussion for May 2011
5-Volt Reference 2 Circuit Malfunction
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 P0651
| Help Request | Posted | |
| 2008 Chevrolet Impala LS 3.5L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 2G1WB58N58 P0651: App 5 volt refence circuit. ... displays reduced power mode, no tach and barely runs on cold start. The only code I have is p0651 for the 5 volt ref. signal to the APP. When this acts up I have no tach signal to pcm, throttle position is fixed at 29%, and my app displays 0% no matter if ... |
May 19, 2011 |
