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    wmuller5's Avatar
    wmuller5 Posts: 1, Reputation: 1
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    #1

    Oct 6, 2012, 08:22 AM
    2001 Honda Civic 1.7 liter engine runs rough
    Our beloved little high mpg car is not high mpg right now. It has been running rough for a few months and just has started idling so rough that it shakes and dies occasionally (2x yesterday)

    I started to adjust the cable coming from the gas pedal to raise the idle, but this seems like a band aid fix. The root cause is... I appreciate any and all input. I am aware there can be many causes to this sort of thing.

    Again, thanks in advance!

    by the way this looks like a cool site! I just joined before typing this.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Oct 6, 2012, 08:37 AM
    When was the last time you had it tuned? Air filter clean? Mass air sensors checked?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #3

    Oct 6, 2012, 11:21 AM
    . Check for any codes or pending codes, using a scan tool. The thought, here, is to see if there is a problem with the MAF Sensor.

    . Replace the platinum spark plugs (NGK only), if they have not been changed in 50,000 miles or 3 years, whichever comes first.

    . Replace the spark plug wires, if they have not been changed in 80,000 miles.

    . Clean the throttle plate, throttle body, and Idle Air Control Valve. Afterwards, clean the air box with a damp cloth and install a new air filter.

    . Adjust idle rpm to spec, after the engine is at normal operating temperature.
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