Haven’t been on the forum in a while as this semester has kept me busy, so I apologize if I’ve missed some responses on my other posts. Unfortunately with the new year a new code has come up on the burb. Code 22, throttle position sensor. I was previously dealing with a code 35 i believe the Idle Air Control valve which i’ve resolved and cleared. As for the tps I’ve checked the ground both off (12.4V) and on (14.2V if i recall correctly) And the sensor itself (blue wire) reads correctly while key turned to the on position and gradually walking the throttle up so the tps reads 5V. However with it running it only gets up to about 1V (maybe i didn’t go all the way to WOT). Runs alright while it’s cold but once it goes open loop shifting gets all out of whack and idle gets real high (about 1500rpm) and sometimes won’t shift to 2nd. I have a 1994 7.4L tbi suburban. Given this info I was wondering what would be the proper way to proceed. I believe this sensor is fairly new as I’m pretty sure I replaced it with most other sensors about 2 months ago. thanks y’all.
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