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P2149 Diagnostic Trouble Code Discussion for January 2010

Injector Positive Voltage Relay Circuit Group 2 (Injectors 6 & 7)


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Trouble Ticket Help Requests for DTC P2149
Help Request Posted
2004 GMC Sierra 3500 6.6L Poor Idle Quality VIN: 1GTHK33254
P2149: Injector Positive Voltage Relay Circuit Group 2 (Injectors 2, 3, 5 & 8). We are at a loss on this, have spent hours tracing wiring. Suspect the FICM, but is a pricey part to replace being unsure. Has anyone run across this before, or know a way to test the FICM? The truck runs fine for 10 mins or so, then check engine light comes o...
January 25, 2010
2004 GMC Sierra 3500 6.6L Poor Idle Quality VIN: 1GTHK33254
P2149: Injector Positive Voltage Relay Circuit Group 2 (Injectors 2, 3, 5 & 8). We are at a loss on this, have spent hours tracing wiring. Suspect the FICM, but is a pricey part to replace being unsure. Has anyone run across this before, or know a way to test the FICM? The truck runs fine for 10 mins or so, then check engine light comes o...
January 25, 2010