I need some suggestions. I recently installed a VRS o/r x on my car. I used plug in MIL eliminators to keep the CEL from coming on, but no luck, the car is throwing code P0135 Upstream Heated Oxygen Sensor Heater circuit fault - Bank No. 1. I have inspected the front O2 sensors for damage, or to see if the wires are damaged and everything looks fine. The car is surging at idle, and I think it is running rich b/c my gas mileage is terrible. Anyway, should I look at purchasing new O2 sensors or would getting the car tuned turn these off. I don't want to spend the money on the O2 sensors if in the end getting the car tuned is what will ultimately fix the problem. Thanks for the advice.
1996 GT conv. 70mm tb, CAI, VRS o/r x, Magnaflow exhaust, eibach pro kit, Tokico hp's, MM cc plates
1996 GT conv. 70mm tb, CAI, VRS o/r x, Magnaflow exhaust, eibach pro kit, Tokico hp's, MM cc plates