Question about 2003 Toyota Avalon

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Engine iddle speed need adjusting

I have a 2003 Toyota Avalon XLS with a V6 engine. The engine starts but cut off when I remove my foot form the gas. How do I adjust the iddle speed?

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  • monroe_walke May 25, 2009

    Thanks



    I need to carry it to a professional. That was very helpful.

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  • 161 Answers

You cant adjust it. Your car has a tps sensor " throttle position sensor " and a iac idle air control. these are both on the throttle body. is the check engine light on? The best way to check them is on a scanner at places like auto zone they will let you use one for free. and will help you do it. first check the codes if any then look at live data scroll down till you see tps and look at its values rev the motor up and it should change values are 0% to 100% no throttle to full throttle. at idle it should be 18 to 26 or so. if it doesnt change or its at a high number and no gas is being given then its bad. also look at the iac and see if it changes as well. you can also google the resistence values for each and ohm them out. It does sound like a bad tps. try that first , and the tps is easy to change

Posted on May 25, 2009

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