Andrew429
Ready to race!
I installed my catted usp downpipe with the 90 degree angle O2 spacers about a week or two ago now and I just got the check engine light. I plugged in my wifi obd scanner and scanned it with the dash command app and it said O2 sensor slow response rich to lean bank 1 sensor 2. What exactly does this mean and also I've noticed my gas mileage has been a little less then what it usually is. Thanks for any insight