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Originally Posted by unique88
I have a real bad hesitaton at low RPM's, usually in 1st and 2nd gear and I'm not sure why. My check engine light came on yesterday but I'm pretty sure it's my 02 because now my air/fuel gauge isn't working. Any ideas on would it could be? Messed up TPS, IAC? Please give me your thougts.
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Common sense here. A/F guage is not working can mean mostly 2 things; 1) bad connection, or 2) no O2. It seems however that with no O2, the car would run a lot worse then you're saying it is. There's a third option too, your gauge just doesn't work period. But I would have a hard time believing that a gauge would burn out or go bad, unless wired incorrectly, which I'm thinking may make option 3 more of a reality for you.
"Any ideas on would it could be?".... Towards what? The car is throwing a CEL and your O2 is apparently not working. Get the CEL pulled and fix that problem. Why are you coming up with random parts such as the TPS and IAC? IAC will cause bad idle, and the TPS will cause problem when actually on the throttle. Ok, maybe for the hesitation the TPS
may be a problem there, but you answered your own question. Anytime the CEL comes on, get that checked out right away, fix that problem, and then post about problems. It's easy. I hate these threads.
