Low Idle

Discussion in 'General Motoring' started by 00civic, Sep 7, 2005.

  1. 00civic

    00civic Guest

    I have a 2000 honda civic LX and yesterday i noticed my car was idling at
    about 200rpms when normal idle is about 900rpms.when cold it idles ate
    1100rpms then goes down to 200 when it's warm, i also noticed when the
    fans kick in the rpms go up to about 600rpms then drops back down.i have a
    haynes manual and it suggests the IAC valve, is there anything else that
    could cause this.
     
    00civic, Sep 7, 2005
    #1
  2. 00civic

    jim beam Guest

    the gauge only goes down to 500rpm, so it's unlikely you tell if the
    motor's idling at 200. normal is supposed to be 750.
     
    jim beam, Sep 7, 2005
    #2
  3. 00civic

    TeGGeR® Guest


    I'll bet he's actually idling at 650.

    1) Dirty throttle body
    2) Dirty/defective IAC.
    3) Idle speed screw adjusted incorectly.
     
    TeGGeR®, Sep 7, 2005
    #3
  4. 00civic

    jim beam Guest

    i'm always reluctant to recommend adjusting the idle screw because if
    all the other stuff is working right, you never need to go near it.
     
    jim beam, Sep 7, 2005
    #4
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