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    jobberknoll's Avatar
    jobberknoll Posts: 5, Reputation: 1
    New Member
    		  
    #1

    Aug 2, 2007, 03:20 AM
    Rpm not stable
    I have a toyota celica 1994 model , running is OK am satisfied with speed but whenever am in idling the rpm goes up and down range from 300-900 rpm , I replace sparkplug, high tensionwire, pressure regulator still the same adz... thanks
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Aug 2, 2007, 06:33 AM
    Check out these areas:

    . Idle Air Control Unit:

    Zip Code Entry at PartsAmerica.com

    . Ignition Control Module:

    Zip Code Entry at PartsAmerica.com

    AutoZone may be able to test the ICM for free.
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