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P0540 Diagnostic Trouble Code Discussion for November 2011

Intake Air Heater Feedback Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0540
Help Request Posted
2006 Chevrolet Silverado 2500 HD LT 6.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCHK23296
This is my first duramax in the shop. It has multiple codes po102, po540, po107, po301, po302, po300, po113. I cleard all codes and took for test drive. Po301 po302 and po300 came back within 1/4 mile. Truck runs like it only has 6 cylinders. Missing and shaki...
November 22, 2011