New to the forum, not seeing how to search for related posts as I am sure there are some out there on this topic. Becoming rather frustrated with my 05 Grand Prix. I have an OBD II tester and was receiving fault codes for my before cat o2 sensor. I replaced both o2 sensors and did a tune up with new spark plugs, wires, thermastat and a coolant flush. Cleared check engine with my OBD and removed my (-) from my battery for a few minutes as I have read this is how to reset Service Engine Soon. The light still comes on. I was also reading any light bulb being burned out on the car would throw this code. I have no bulbs at all burnt out and the car is running fine. Any help would be great. Seriously sick of having to reset this every single time I start my car.
