2003 Pontiac Bonneville Q&A
2003 Pontiac Bonneville Question: Car quit and I read Code P0122 (Throttle position sensor). Cleared code and....
You need to check the new sensor and see if it is bad. You may have a bad connection at the sensor, a wire with high resistance, bad PCM, etc. Where did you buy the part? Did you check the output of the old sensor or just replace it it because of the code? - Chevy Power