Hi All, I have a 2004 Hyundai Sonata 2.7 6 cyl with about 160K. I bought it used and all has been fine till yesterday. While driving home the throttle suddenly started to surge wildly. While holding the pedal down 1/2 way it will rev to 4-5K for a few seconds then drop all the way down to nearly 0 for a few seconds then repeat this sequence. I checked the code and had a TPS error No CEL, Replaced from Autozone, but still is doing this.I cannot drive past 30- 35 mph. CAN anyone HELP Me

Asked by rickie007 Feb 10, 2014 at 09:20 PM about the 2004 Hyundai Sonata FWD

Question type: Maintenance & Repair

Hyundai Sonata Fluctuating RPms, Surging

3 Answers

rickie007 answered 10 years ago

Yes, i thought maybe it was that, so i put it in park, held down the throttle and it did the same thing with no engine load

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tuff4x4 answered 10 years ago

TPS sensor or the wiring in the connector to the TPS sensor. (throttle position sensor.)

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