Running rich??

sick GN

Jun 18, 2001
My car has Alky, K&N, and an ATR 3" DP. It seems to be running rich. On the OTC it says rich and stays there just wondering if I can do anything to adjust it without having an adj. FPR.

It's running rich at idle though. Any more suggestions?? I'm pretty new to tuning these cars.

Definitely could be an exhaust leak, it makes the computer think it's lean. Could be a bad mafs too, or O2 sensor. Do you have a fairly new AC Delco O2 sensor?
Adjusting the fuel pressure, if you could, probably wouldn't change anything, except briefly.