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P2146 Diagnostic Trouble Code Discussion for June 2010

Injector Positive Voltage Relay Circuit Group 1 (Injectors 1 & 4)


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Trouble Ticket Help Requests for DTC P2146
Help Request Posted
2004 GMC Sierra 3500 6.6L Hesitation, MIL Lamp on VIN: 1GDJC34224
P2146: A/F Mode Relay Circuit Malfunction. This truck misses at times. i have read two tsb related to my concern. 05-06-04-047b and 09-06-04-034. i didnt find any wires rubbed threw and i wiggled #7 injector connector but cant get it to duplacate the concer. If the truck is driven the problem comes bac...
June 09, 2010
2004 GMC Sierra 3500 6.6L Hesitation, MIL Lamp on VIN: 1GDJC34224
P2146: A/F Mode Relay Circuit Malfunction. This truck misses at times. i have read two tsb related to my concern. 05-06-04-047b and 09-06-04-034. i didnt find any wires rubbed threw and i wiggled #7 injector connector but cant get it to duplacate the concer. If the truck is driven the problem comes bac...
June 09, 2010