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P1128 Diagnostic Trouble Code Discussion for March 2005

Closed Loop Fueling Not Achieved - Bank 1

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Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2000 Hyundai Accent GS 1.5L Hesitation, MIL Lamp on VIN: KMHCG35G8Y
P1128: Long Term Fuel Trim Multiplier System Too Lean. We have this Hyundia that basically runs very bad and bogs down when cold by the time you get it in the shop runs ok Ive cleaned and scoped the MAF sensor looks good ,and tps also looks good checked crank and cam signals and also injector scope patterns I have...
March 14, 2005