when throttle is pressed open it bogs down as if it is out of fuel

Asked by freebird78 Jun 22, 2007 at 12:50 PM about the 1999 Chevrolet Cavalier Z24 Convertible FWD

Question type: Maintenance & Repair

it idles fine but when you give a lot of throttle it loses all power as if out of fuel  

3 Answers
84,385

littlehorn answered 17 years ago

Sounds like a throttle position sensor to me. Incorrect sensor reading sends an improper signal to the ECM and not enough or too much gas gets dumped into the engine. You may also have a bad spark plug or wire causing it to misfire under load and lose power.

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Roger answered 8 years ago

it got a new throttle position sensor and new plug and wire and that didnt work

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Silky69 answered 7 years ago

I have same problem with 7.4l Chevy. Can't for the life of me figure it out. Hopefully someone can help us both out

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