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P1128 Diagnostic Trouble Code Discussion for July 2014

Closed Loop Fueling Not Achieved - Bank 1


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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2007 Dodge Charger 2.7L MIL Lamp on VIN: 2B3KA43R77
P1128: Closed Loop Fueling Not Achieved - Bank 1. Thank you in advance, this charger is setting these codes intermittently. Suspect intermittent problem with o2 sensors, but cant prove it. Hard to believe both bank 02 sensors failing at the same time, causing both bank codes to set. Freeze frame data as follo...
July 18, 2014