TPS sensor p0121
#1
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Was on my way home from the track last night and the light came on. Pulled over and checked the code and it was 2 p0121 codes. Cleared them and went on my way and it came back on. Checked it when got home again and it was the same code but also a code that said bank 2 was rich. Today light was still on and after driving for 20 minutes or so the light went off on it's own. What do i need to do. Replace the tps sensor or what? also the traction control went off and i couldnt turn it back on.