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    ONINE_BUSA's Avatar
    ONINE_BUSA Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 26, 2011, 07:36 AM
    How do I find an ECM serial # match for my 1992 Honda Civic?
    I replaced my original ECM with a different serial# of a unit I bought off eBay.
    Now, my car starts and runs (not before), but now it idles at 2500 rpm for at least 20 minutes each time I start it.
    Once the rpms go back down to normal, it idles from intermittently from 500-1000 rpms on its own.
    I have misplaced the original ECM so I don't have my serial number, but had seen online that I can provide vehicle information to get a correct part match.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Mar 26, 2011, 08:20 AM

    Try calling your local Honda parts department.
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