what are these codes po123 and po121 These two codes are pointing at your TPS. Your car may have a rough or high idle, or it could be surging or stumbling when accelerating and decelerating The causes
Question about 2004 Grand Cherokee
...Jeep fixed? Thanks so much! You need to inspect those parts. The two codes, in a way are related. But they happened in different seasons. These newer cars are picky about what is going on and the ...
p0121 error code CODE PO121 THROTTLE POSITION SENSOR A RANGE PERFORMANCE PROBLEM.
Question about 2004 Grand Cherokee
2004 jeep grand cherokee stalls at stop lights and cuts off I have a computer code po121 on 2004 jeep ehgine light
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