MidWestUsa
New member
- Joined
- Jan 18, 2022
- Messages
- 4
- Reaction score
- 0
- Points
- 1
Vehicle
2016 GMC Yukon XL Denali
172k miles (New GM engine installed at 83K miles)
Normal idle, normal running
Highway average 18-20 miles/Gallon
City average 14-16 miles/Gallon
I was having P0430 code since last 50k miles , changed O2 sensor on bank 1 still same, recently friend came over connected his scanner where it shows short & long term fuel trim 200. Assuming t idle it supposed to be close to 0 (negative or positive)
Short term Fuel Trim bank 1 = -200%
Short term Fuel Trim Bank 2 = -200%
Long term Fuel Trim bank 1 = -204%
Long Term Fuel Trim Bank 2 = -203%
Please advise, what to do ?
Thanks
2016 GMC Yukon XL Denali
172k miles (New GM engine installed at 83K miles)
Normal idle, normal running
Highway average 18-20 miles/Gallon
City average 14-16 miles/Gallon
I was having P0430 code since last 50k miles , changed O2 sensor on bank 1 still same, recently friend came over connected his scanner where it shows short & long term fuel trim 200. Assuming t idle it supposed to be close to 0 (negative or positive)
Short term Fuel Trim bank 1 = -200%
Short term Fuel Trim Bank 2 = -200%
Long term Fuel Trim bank 1 = -204%
Long Term Fuel Trim Bank 2 = -203%
Please advise, what to do ?
Thanks