× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1128 Diagnostic Trouble Code Discussion for October 2007

Closed Loop Fueling Not Achieved - Bank 1


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1128
Help Request Posted
2001 Hyundai Accent GL 1.5L MIL Lamp on VIN: KMHCG35GO1
P1128: Long Term Fuel Trim Multiplier System Too Lean. ... thing in the morning on the first crank. After that it will run fine all day but will set a code P1128. To set the code the fuel trim has to go 10-15 percnt lean for 30 seconds durning 2 drive cycles. I have scoped the secondary ignition system and replace...
October 16, 2007
2001 Hyundai Accent GL 1.5L MIL Lamp on VIN: KMHCG35GO1
P1128: Long Term Fuel Trim Multiplier System Too Lean. ... thing in the morning on the first crank. After that it will run fine all day but will set a code P1128. To set the code the fuel trim has to go 10-15 percnt lean for 30 seconds durning 2 drive cycles. I have scoped the secondary ignition system and replace...
October 18, 2007