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P1127 Diagnostic Trouble Code Discussion for December 2020

ETCS Actuator Power Source Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1127
Help Request Posted
2007 Ford Mustang GT 4.6L Poor Idle Quality, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1ZVHT82HX7
P1127: Down O2s not tested on KOER. Here's one for the mustang enthusiasts. This will be a long post but there's a lot to say. Customer brought car in for failed emissions. After checking monitors the cat, O2 and O2 heater weren't ready. Mil lite was not on but I scanned computer and saw the...
December 04, 2020