Motohead1
20+ Year Contributor
- 103
- 0
- Dec 11, 2002
Ok i have a 90 AWD with stock mas, stock fuel system but a AFPR (charged air). I have a 2g mas to put in and 550s soon but for now I just run base pressure at 44. witch is just 2psi above stock. My concern is my fuel trims. They are 118 across the board. So basicly i am running lean all the time? I dont beat on the car and i have reset the computer a few times. Just wondering if this is normal operation for a 90 ECU to have 118% fuel trims? Or is this a sign of a dying O2? The O2 seems to be working fine acording to the logger. also i am on the stock fuel pump too. Anyway just wondering if this was normal. thanks.
