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P2177 Diagnostic Trouble Code Discussion for December 2011

Fuel System Too Lean At Off Idle (Bank 1)

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Trouble Ticket Help Requests for DTC P2177
Help Request Posted
2009 Mazda 3 S 2.3L Poor Fuel Economy, MIL Lamp on VIN: JM1BK34389
P2177: System to Lean B1. ... and a check engine light problem. I can honestly say I don't work on many Mazdas but this a friend of a very good customer and I feel the need to help him out. The check engine light was on with codes: P2177 System to lean...
December 13, 2011