Q: High idling 3000-4000 rpm after cleaning throttle body...even after warming .....relearn procedure not working nissan altima 2007

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Rpm used to fluctuate during deceleration like between 2030mph....and tried to fix it by cleaning throttle body.....but now having a new issue after cleaning.....rpm idling high continuously between 20003000 rpm even after warming.....relearn procedure not working too...tried manually 💯 times....Altima 2007 4 cyl.. Any help?

My car has 55000 miles.
My car has an automatic transmission.

Hi Muhibur. Thanks for sending your question today. This could be either a vacuum leak or an issue with the ECU that is causing this high RPM issue. The only way to know for sure is to have a professional mechanic complete an engine idle speed is high inspection. You can click that link to learn more about the inspection.

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