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Resolved CEL P0120 and running rich

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JackStieben

Proven Member
202
21
Feb 11, 2014
San Antonio, Texas
Today when driving, every time I let off the throttle at around 2-3k rpm, my wideband reads rich, around 11.8-13ish. When it does that, it shuddered and felt like it was misfiring. I pulled over and the car pretty much stalled when I threw it in neutral. Everything under the hood looked okay, I checked the spark plug wires to see if any of them popped out. Everything seemed normal so I turned the car on and continued driving. It didn't seem to do it as much since it had somewhat warmed up at this point, I just had to drive somewhat carefully. I noticed I threw a code and when I checked it, it was the P0120. That's for the TPS, I haven't messed with that, could it just be that it's gone bad or could it somehow moved out of alignment? Or is there anything else that could affect it and throw the code?
 
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