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

    Dec 20, 2007, 02:33 PM
    2003 Honda Civic has high idle 3000 RPM
    My 2003 Honda Civic LX with 47,000 miles has worked perfectly until now. Since yesterday, every time I start it, the engine revs up to 3,000 rpm in neutral or park and 2,000 rpm if in drive. I can control the car with the brake, but it runs away with me if I stop braking. So I can't drive it safely. I live on an island a $150 ferry ride and 15 miles from a dealer or import mechanic. I'm hoping there is something I can check myself so I can safely get it onto the ferry and to the dealer.

    Will it help if I disconnect and reconnect the positive terminal to the battery? Or remove a fuse? Is there a control module I can access and replace?

    Help!
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Dec 20, 2007, 02:49 PM
    If the idle rpm is too high when warm:

    . Check Idle Air Control Valve.
    . Check Fast Idle Thermo Valve.
    . Check hoses and connections.
    . Check Throttle Position Sensor--disconnect connector to the TPS; reset ECM, by pulling the Backup Fuse in the U/H Fuse Box or disconnecting the negative. Battery terminal for 10 seconds; and, then, reconnecting the TPS connector.
    . Check idle adjusting screw. This link may help:

    https://www.askmehelpdesk.com/cars-t...tml#post219948
    dallas2446's Avatar
    dallas2446 Posts: 1, Reputation: 1
    New Member
    		  
    #3

    Mar 8, 2010, 08:04 PM
    My rpm is to high when I driver 65mph, it is at 3500
    What causes this. My idle is fine
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