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P0651 Diagnostic Trouble Code Discussion for September 2013

5-Volt Reference 2 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0651
Help Request Posted
2008 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GNDT13S18
P0651: Loss of 5-volt reference Circuit 2. ... running rough no power stalling out and check engine light on and reduced power light on. Has P0651 stored in computer. The problem is it is very intermittant when it happens. The three times it did happen where on start up after vehicle would sit over nig...
September 25, 2013