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P1128 Diagnostic Trouble Code Discussion for June 2006

Closed Loop Fueling Not Achieved - Bank 1

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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2001 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSS29M61
P1128: long term fuel trim bnk 1 lean. ... april with this code (p1128) at that time the intake air boot was damaged and we replaced also cleaned the maf and replace the plugs-came back last week with same code-so we ran fuel pressure test and it is good and we saw little change in the o2 sensor an...
June 26, 2006