Question about 1998 Mitsubishi Eclipse

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Sudden drops in rpms for an 98 eclipse turbo

My car is running good but sometimes the rpms drop all the way to 0 but just nfor a second then comes back to normal. Sometimes their continous and the car shuts down. The rpms drop is very fast and when the car is running for a while the rpms get under 1. I cleaned the egr but the problem persisted.

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  • mlm_pr Feb 22, 2009

    I changed the Idle air motor but the problem continues. The rpm are ok but the suddenly drop and come back up to regular. If any have any other idea it would realy help. Thanks

  • thegrimre755
    thegrimre755 Jan 05, 2013

    are you haveing an EVAP problem cause that sounds like what im haveing

  • Anonymous Mar 25, 2014

    rpms drops and goes back up on take off


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  • Mitsubishi Master
  • 331 Answers

Its probably the Idle air motor. they always go bad on the 4g63.

rpms should be about 750, or 850 with the A/C on

Posted on Jan 25, 2009

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