Bullitt 01 bullit is idling to high

Discussion in 'Special Production' started by cezr75, Sep 22, 2009.


  1. cezr75

    cezr75 New Member

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    hey everyone,
    I recently replaced a faulty iac valve on my bullit. it ran fine for a couple of weeks. recently it started idling at 900 rpms where before it would idle at around 750 rpms. i took the iac vale back to the dealer and exchanged it. still is idling to high. i also changed the tps sensor and it didnt help. why would it suddenly be idling higher now? any input would be apreciated. thanks everyone.
    #1
  2. snipercop

    snipercop New Member

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    Do you have a tuner on the car like a Predator that you can monitor your motor? It sounds like you definitely have a vacuum leak somewhere.
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  3. CopNaStang

    CopNaStang New Member

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    Make sure all your connections on your intake system are tight, etc. I think my Diablo, itself, made my car idle higher than normal.
    #3
  4. DragonBullitt

    DragonBullitt New Member

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    what mods do you have?
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  5. bullitt1939

    bullitt1939 New Member

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    Might be your TPS (throttle body position sensor). I have had to change mine a few times, but mine was idling at 2-3k. Hope this helps.
    #5
  6. Bullitt322

    Bullitt322 New Member

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    I'd agree. Sounds like a vacuum leak. Where did you get the new IAC? I know there are definite issues with aftermarket stuff. Is it making any noises at idle like a buzz or honking?
    #6

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