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Thread: idle problem

  1. #1
    DX User
    Join Date
    Apr 2002
    Vehicle
    1998 Honda Accord Ex
    Location
    ILLINOIS
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    27

    idle problem

    the problem is when the car is started the idle fluxchuates from 1-2000 rpms . i dont get it



  2. #2

    87accordlxph's Avatar
    Join Date
    Apr 2002
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    Carbed 1987 Honda Accord LX & Black 4th gen Accord (91)
    Location
    Petrolia, Ontario Canada
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    This is fast idle for a fuel injected motor, don't worry as soon as the car reaches it's normal operating temperature the fast idle will disengage and the idle will drop to 700-750rpm and will idle normally. If the car wouldn't fast idle then the car would run like crap when you start it cold and drive it around.

    How?

    When the antifreeze surrounds this thermowax (it's like a sensor but it's not really) on the bottom of the the plunger this plunger (air bypass valve) allows more air flow to the intake manifold which will increase idle.
    So when the coolant increases temperture the valve then closes and the fast idling stops.

    Hope this explains it.

    -Mike
    Mike's Clean Cnd A20A2 5 spd Champaigne Beige Sedan Accord, Eh!
    B-Day: 07/87 in Alliston, ON Canada

    ---------------------------------------------------------------
    The best mods are mods that can be modded over and over again.

  3. #3
    SEi User
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    Jun 2001
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    88 lxi coupe
    Location
    gainesville, fl
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    1,999
    Clean the fast idle valve.
    Do a search on "idle problem fluctuates blah blah blah"

  4. #4
    SEi User
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    88 lxi coupe
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    Oh yeah, make sure that your cooling system is not leaking and there are no air in your cooling system.

  5. #5

    87accordlxph's Avatar
    Join Date
    Apr 2002
    Vehicle
    Carbed 1987 Honda Accord LX & Black 4th gen Accord (91)
    Location
    Petrolia, Ontario Canada
    Posts
    529
    Mike's Clean Cnd A20A2 5 spd Champaigne Beige Sedan Accord, Eh!
    B-Day: 07/87 in Alliston, ON Canada

    ---------------------------------------------------------------
    The best mods are mods that can be modded over and over again.

  6. #6
    DX User
    Join Date
    Mar 2003
    Vehicle
    1988 accord 2-door
    Location
    Edmonton AB canada
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    2
    i had the screwy jumping idle, and i just fixed it today by bleeding my coolant system. It had air in it. See the how to section.

  7. #7
    DX User
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    Apr 2003
    Vehicle
    1989 accord lxi coupe
    Location
    rhode island
    Posts
    11
    if all else fails dont forget the tps
    damn accord always in the back of my mind!

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