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    masterevil1990's Avatar
    masterevil1990 Posts: 75, Reputation: 1
    Junior Member
    		  
    #1

    Dec 12, 2010, 01:09 AM
    My 1990 civic dx is running rough
    I own a 1990 civic dx... I've recently replaced the fuel filter , cleaned injectors , replaced oil pan gasket and change , replaced o2 sensor , replaced exaust downpipe gasket and replaced distributer cap and roter... but its still running rough... what can I do to help smothen my engine
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Dec 12, 2010, 06:42 AM

    . Clean the Idle Air Control Valve (IACV), throttle plate, and throttle body:

    https://www.askmehelpdesk.com/cars-t...ml#post1054149

    . Replace the Ignition Control Module (ICM) and coil:

    https://www.askmehelpdesk.com/cars-t...tml#post265896
    masterevil1990's Avatar
    masterevil1990 Posts: 75, Reputation: 1
    Junior Member
    		  
    #3

    Dec 15, 2010, 12:12 AM
    Comment on TxGreaseMonkey's post
    Um... where is the IACV located ? Picture would help
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Dec 15, 2010, 07:38 AM

    Backside of plenum--you can't miss it.
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