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weird idling problem when driving

Discussion in 'General Tech and Maintenance' started by preludedriva, Sep 28, 2005.

  1. preludedriva

    preludedriva Junior Member

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    ok when im driving around and im about to come near a stop or whatever i put it into neutral and the rpms "should" goto like 700-1000 or w/e right? instead it revs up to 3000 how do i fix this? kinda like a sticky idle
    really annoying
    i was told it could be iacv or throttle body?
    if anyone konws a fix let me know thanks
     
  2. nightshift

    nightshift Member

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    is it throwing a c.e.l (check engine light)
     
  3. D See 2

    D See 2 Senior Member

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    set your idle PROPERLY. Most people think that adjusting the idle set screw while the engine is running does the trick. It doesn't. The IACV compensates for whatever changes you make while the car is running. Follow these steps...

    1. Turn on car and get to operating temp...
    2. Turn car off...
    3. Unplug IACV and start car...
    4. Adjust idle screw until engine is idling at 700 rpm...
    5. Shut the engine down...
    6. Reconnect IACV...
    7. Reset ECU...
    8. Start car up to make sure everything's okay.

    If everything in your idle conrol system is functioning properly, that will cure the problem. That's pretty much straight out of the manual. I've done it so many times, it's kinda like second nature. Try that and if it doen't help. I'd say you have a vacuum leak somewhere. Also, double check the voltage on you TPS sensor, with the key in the "ON" position, the middle wire should read .5 volts at fully closed throttle and 4.5 volts at WOT.
     
  4. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    i second the vacuum thing. even a wide open screw will not put your idle that high
     
  5. preludedriva

    preludedriva Junior Member

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    well
    my car is at the shop getting a new head on it
    it was throwing the vtec code
    ive adjusted the idle with the car on in the past so yeah that might be the problem
    whats the IACV look like?
     
  6. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    umm its a lil thingamabob on the back of the TB.
     
  7. VTECPOWER

    VTECPOWER Senior Member

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    haha, that may have not helped him, but it will help me when i put in my skunk2 throttle body.
    Thanks
     
  8. DwnShftPrincess

    DwnShftPrincess Senior Member

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    had the same problem. i had a leaky vac and a busted distributor. hell, check everything. [​IMG]
     
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