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P2146 Diagnostic Trouble Code Discussion for March 2013

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


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Trouble Ticket Help Requests for DTC P2146
Help Request Posted
2005 Chevrolet Silverado 3500 6.6L Hesitation, MIL Lamp on VIN: 1GBJC33275
P2146: A/F Mode Relay Circuit Malfunction. This Silverado wont go over 40km/hr Intermittantly. The mil is on.It does shift ok. Cleared codes and drives normal. Codes have repeated. Has anyone had a problem with these codes repeating lack of power thinking FICM hoping someone has repaired one similar an...
March 11, 2013
2005 Chevrolet Silverado 3500 6.6L Hesitation, MIL Lamp on VIN: 1GBJC33275
P2146: A/F Mode Relay Circuit Malfunction. This Silverado wont go over 40km/hr Intermittantly. The mil is on.It does shift ok. Cleared codes and drives normal. Codes have repeated. Has anyone had a problem with these codes repeating lack of power thinking FICM hoping someone has repaired one similar an...
March 11, 2013