1997 GMC Safari Repair Question
Topics covered: Body, Sensor, Throttle body.
Mileage: 189,000 miles.
Mileage: 189,000 miles.
Asked on February 27, 2011
1997 gmc safari code p0121 service engine soon light
Po121 code for 1997 gmc safari what do i need to fix for this code to disappear?
Asked by rocket2220Answer
Replied on February 27, 2011
That's indicating a problem in the TPS circuit somewhere. It could be the sensor itself, the throttle body, the PCM or any related wiring. It would have to be troubleshooted.
Replied on March 4, 2011
It's everything in the system that has anything to do with the TPS.