Question about 1999 Lotus Esprit

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1999 lotus v8 esprit. dosent idle correctly hot or cold, after a blast up the road it will stay reving at 2500rpm untill switched off and re started. If you disconect the IAC valve it runs on base idle and is ok hot and cold. no fault codes, scoped all available live data through EOBD and all is well. Something telling the IAC valve incorrect data? No air leaks that I can find any help other than a box of matches? cheers

Posted by mike_shell_s on

  • Anonymous Mar 27, 2009

    A new idle air valve has been fitted already and has made no differance.

  • Dave  C
    Dave C May 11, 2010

    The valve is probably sticking, take it out and clean it with aerosol carb cleaner. If it fixes it and then happens again, replace it.



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Sounds like the idle air control is gummed up with carbon remove and clean

Posted on Mar 26, 2009


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