Question about 2001 Hyundai Sonata

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My car check engine light comes on and goes off. When it comes on the car jerks from second to third gear. Now most times I can't go faster than 20mph. Lately it has started stalling off. I took it to Advance Auto and their OBD tester gave a code that no one has heard of. I think it was TMJ. I took it to a mechanic and got an oil change before a state inspection. He was thinking this way the machine would tell us what was going on. After the oil change the light went off and it passed the inspection. I drove out the parking lot into the street and the check engine light came back on. My A/C doesn't work anymore either. Please help if you can. I live in NC.

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Sounds like your vehicle is going in to safe mode and the throttle position sensor is either faulty or needs cleaning throttle body cleaner should be tried and inspect your air and fuel filter as well hope this helps if not go onto the internet and look up the fail safe code that the mechanic gave you there should be of some help.

Posted on Nov 20, 2009

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Might be the map sensor, throttle position, or the computer is going bad!

Posted on Nov 20, 2009

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