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P1129 Diagnostic Trouble Code Discussion for December 2009

Closed Loop Fueling Not Achieved (Bank 2)


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Trouble Ticket Help Requests for DTC P1129
Help Request Posted
2003 Audi RS6 4.2L Excessive Emissions, Poor Idle Quality, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WAUZZZ4B13
P1129: 002 LOWER LIMIT EXCEEDED bank2. This vehicle intermittently runs rough after sart up when cold(ie in morning or after sitting for 1/2 day or longer, ambient temp 10 to 20 degrees C)It then also has a rockhard brakepedal(No boost).The problem always seems to clear itselve after a while(10-15 ...
December 11, 2009
2003 Audi RS6 4.2L Excessive Emissions, Poor Idle Quality, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: WAUZZZ4B13
P1129: 002 LOWER LIMIT EXCEEDED bank2. This vehicle intermittently runs rough after sart up when cold(ie in morning or after sitting for 1/2 day or longer, ambient temp 10 to 20 degrees C)It then also has a rockhard brakepedal(No boost).The problem always seems to clear itselve after a while(10-15 ...
December 17, 2009