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High idle problem!!!!!

This is a discussion on High idle problem!!!!! within the GTO forums, part of the Vehicle Specific category; Okay guys today the car started acting funny after driving it around, it first started by surging really bad then ...

  1. #1
    Member ledesma54's Avatar
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    04 GTO

    High idle problem!!!!!

    Okay guys today the car started acting funny after driving it around, it first started by surging really bad then at when i finally made it into the driveway it started idling as high as 2000 to 1500. Tomm morning iam going to start checking stuff. So were should i start checking??? The has been tuned for like 2 months now and it has been fine, until today.

    04 GTO A4
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    oil catch can, Pacesetters LT Headers,3500 Stall, K&N CA, bmr drag bags.
    Last edited by ledesma54; 10-26-2010 at 08:26 PM.

  2. #2
    Member ledesma54's Avatar
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    Also what can i use to clean the iat sensor???? And do i need to take it apart or can i just spray it with something??

  3. #3
    Veteran 0rion's Avatar
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    sounds like you have a vacuum leak or a leak after the MAF sensor. Sounds like you're getting unmetered air in there somewhere.

  4. #4
    Member ledesma54's Avatar
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    ya iam thinking the samething, i guess i can use some carb cleaner and start spraying around. Also i dont have a maf iam running SD.

  5. #5
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    do these cars have tps?? because that happend to my old car and it was a bad tps

  6. #6
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by ledesma54 View Post
    Also what can i use to clean the iat sensor???? And do i need to take it apart or can i just spray it with something??
    It's usually not recommended to clean them with solvents. Rather the port in which it goes into can build up carbon/oil etc., usually just replace iat and iac sensors also because they are usually inexpensive..


    Quote Originally Posted by 0rion View Post
    sounds like you have a vacuum leak or a leak after the MAF sensor. Sounds like you're getting unmetered air in there somewhere.
    This..
    Last edited by Smittro; 10-28-2010 at 08:29 PM.
    :\Users\Steven\Pictures\d6ftg5nh.gif


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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by jjc239 View Post
    do these cars have tps?? because that happend to my old car and it was a bad tps
    Yes, I believe the fly by wire lsx's do not, well @ least not a visible one anyways..

  8. #8
    Junior Member GMMAD's Avatar
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    heron white
    2001 VX SS COMMODORE

    check the PCV hoses

  9. #9
    Smiles for 9.5 Years cammed goat's Avatar
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    Have you checked your IAC sensor as well?

  10. #10
    Junior Member GMMAD's Avatar
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    heron white
    2001 VX SS COMMODORE

    Quote Originally Posted by ledesma54 View Post
    Also what can i use to clean the iat sensor???? And do i need to take it apart or can i just spray it with something??
    use electrical contact cleaner
    or you can get cleaner made for maf/afm

  11. #11
    Member JAX04's Avatar
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    have you checked to make sure the cable hasnt got hung up?? also, yes, they have a tps, its the lower sensor on the right hand side of the throttle body, IIRC.

  12. #12
    intimdator gotws6's Avatar
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    check for vacum leaks first thats free then go from their

  13. #13
    Veteran 0rion's Avatar
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    Quote Originally Posted by GMMAD View Post
    check the PCV hoses
    I would look here first....that pcv hose likes to crack in the elbow where it turns to go into the side of the intake.

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