- Mar 9, 2010
- 31
- 0
- 6
ok so hears the deal....not to long after installing a catted X pype on my car the SES light came on. well i got it scanned and it said rear o2 sensor so i replaced both of them got the light cleared only to have it come back on 100 miles later, got it scanned and said the same thing. so i put some MIL Eliminators on it just to see if it would help, got it cleared, 200 miles later it comes back on. what other possibilities could it be?