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P1139 Diagnostic Trouble Code Discussion for September 2008

Air Fuel Sensor (Bank 1 Sensor 1) Circuit Performance

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Trouble Ticket Help Requests for DTC P1139
Help Request Posted
2002 Audi S4 Avant 2.7L Excessive Emissions, MIL Lamp on VIN: WAUXD68DX2
P1139: Fuel trim bank 2 sytem too rich add. Hello Audi Techs This vehicle is also putting out white smoke out of the tail pipe, we check for vacuum leaks with a smoke machine and did not find any vacuum leaks, also has auto transmission code P 1857 (load signal error message from ecu)and ABS code P1857 ...
September 03, 2008