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P1128 Diagnostic Trouble Code Discussion for February 2007

Closed Loop Fueling Not Achieved - Bank 1

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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
1998 Volkswagen Beetle 2.0L MIL Lamp on VIN: 3VWBB61C9W
P1128: long trim bank 1 system lean. hello freinds, this car has 2 codes 1 stating fuel trim is lean and also system is rich. freeze frame data showed fault at low rpm 1800 and fuel trim was +17% checked for vacuum leaks. at the time of inspection long trim fuel is +8% and short trim varies 0-5% ...
February 22, 2007