Mechanics

THROTTLE POSITION SENSOR

2000 GMC Jimmy

Electrical problem
2000 GMC Jimmy 6 cyl Four Wheel Drive Automatic 74,000 miles

replaced throttle position sensor and my check engine light comes on goes off, comes on goes off
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Scooter7205
June 3, 2009.



What code is in the PCM? You need to have it scanned to see where to start

Tiny
Jack42
Jun 3, 2009.
Ihave had the vehicle scanned a couple of times and it comes up code 121 which I was told was the tps sensor in which I just replaced.

Tiny
Scooter7205
Jun 3, 2009.
At minimum you will need a meter to diagnose this or a scan tool. One of the threee wires is a 5 volt reference. One of theother wires should have around.5 volts at idle and it should increase to 5 volts at full throttle. If the minumum idle (idle screw) has been adjusted ori f it is having idling issues (IAC- Idle Air Control) it can also set a TPS code

Tiny
Jack42
Jun 3, 2009.