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P1128 Diagnostic Trouble Code Discussion for March 2011

Closed Loop Fueling Not Achieved - Bank 1


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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2000 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 3VWSE29MOY
P1128: bank 1 lean. Car barely starts/idles/runs, will start up and idle high and smooth for 1-10 seconds, then drops to 4-500rpm. No power in gear, was able to get runnability back by unplugging the air flow meter. Still runs in throttle limp mode, smooth but only barely opens t...
March 04, 2011
2000 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 3VWSE29MOY
P1128: bank 1 lean. Car barely starts/idles/runs, will start up and idle high and smooth for 1-10 seconds, then drops to 4-500rpm. No power in gear, was able to get runnability back by unplugging the air flow meter. Still runs in throttle limp mode, smooth but only barely opens t...
March 07, 2011
2008 Chrysler Town & Country (Van) Limited 4.0L Hesitation VIN: 2A8HR44H78
P1128: Closed Loop Fueling Not Achieved- Bank 1. A couple of weeks ago this van came in with a P0300 and P0339. Spark plugs were worn, wires were original, replaced both and cleared codes. No abnormal symptoms noted during test drive. Customer drove, after a few days the Check Engine light came back on with ...
March 28, 2011
2000 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 3VWSE29MOY
P1128: bank 1 lean. Car barely starts/idles/runs, will start up and idle high and smooth for 1-10 seconds, then drops to 4-500rpm. No power in gear, was able to get runnability back by unplugging the air flow meter. Still runs in throttle limp mode, smooth but only barely opens t...
March 04, 2011
2000 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 3VWSE29MOY
P1128: bank 1 lean. Car barely starts/idles/runs, will start up and idle high and smooth for 1-10 seconds, then drops to 4-500rpm. No power in gear, was able to get runnability back by unplugging the air flow meter. Still runs in throttle limp mode, smooth but only barely opens t...
March 07, 2011
2008 Chrysler Town & Country (Van) Limited 4.0L Hesitation VIN: 2A8HR44H78
P1128: Closed Loop Fueling Not Achieved- Bank 1. A couple of weeks ago this van came in with a P0300 and P0339. Spark plugs were worn, wires were original, replaced both and cleared codes. No abnormal symptoms noted during test drive. Customer drove, after a few days the Check Engine light came back on with ...
March 28, 2011