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P2177 Diagnostic Trouble Code Discussion for April 2011

Fuel System Too Lean At Off Idle (Bank 1)

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Trouble Ticket Help Requests for DTC P2177
Help Request Posted
2006 Cadillac CTS 2.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1G6DM57T56
P2177: Fuel Trim System Lean At Cruise Or Acceleration (Bank 1). Hey guys. This customer requested a used engine b/c the dealer said the chain jumped and bent all the valves. I installed the engine and it ran great. The customer put [...] on it and the CEL came on with the codes listed below. When I clear the codes the one ...
April 26, 2011