I'm new to the Mustang scene...car is a 98 Gt Vert Auto (my lady friend's car) , all stock except MAC in the fender CAI and a BBK catted X pipe. I keep getting CEL for the 02 sensors. I just recently did the capacitor and resistor mod but a day later the light comes back. I would just like to get them turned off. Anyone know of a shop in CT that would do a tune?