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P1127 Diagnostic Trouble Code Discussion for July 2012

ETCS Actuator Power Source Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1127
Help Request Posted
2004 Audi Allroad Quattro 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WA1YL64BX4
P1127: Bank 1 Mixture adaptation system too rich. Got this one Audi that has a dead misfire on Cylinder 1 and Misfires on cylinder 2 on cold start. Checked compression, 185-190 psi across the board. Ran fuel system cleaner through. Swapped plugs, coils, injectors, does not change cylinder. Checked for injecto...
July 27, 2012