firtyducker

Ive had the car for about two years. Only recently installed a FR Wilks race chip in the car in the last 6 months.

Car has been running rich but only realized exactly how rich when i pulled plugs today. Would deleting the O2 sensor worsen, or improve the rich mixture, or should i mess with the air/fuel mixture before i unplug the O2 sensor?

Any help would be greatly appreciated.

snb13

Adjust the FQS, should take care of it.

V2Rocket

Oftentimes the "chips" add fuel as part of the power-making strategy.
O2 sensor should even the car out for normal driving - at full throttle (full power) the O2 sensor isn't used.

The AFR mixture screw on the AFM is only for idle emissions, not running AFR.
The FQS on the DME will do a little bit of adjustment.