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P1128 Diagnostic Trouble Code Discussion for July 2004

Closed Loop Fueling Not Achieved - Bank 1

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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2001 Hyundai Accent GL 1.5L Hesitation, MIL Lamp on VIN: KMHCG8YU06
P1128: Long Term Fuel Trim Multiplier System Too Lean. Can't seem to nail this code P1128 down. This car has a midrange bog and general lack of power until it's fully warmed up then everything AOK. The above work has been done and the MAF sensor was removed and cleaned thoroughly without any change. Evap system ap...
July 21, 2004