Home›Forums›Technical – General›Engine›Vz ls1 rough idle

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  • April 18, 2015 at 12:47 pm #5000
    Profile photo of VZ Calais LS1
    VZ Calais LS1
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    Member since: April 18, 2015
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    Got an 05 vz calais with LS1.

    Car drives perfect but has a rough idle and is choppy, it’s not a consistent rough idle like it has lazy cylinder but varies.

    I bought a new Pcv hose set up from Holden as read cracked hose and air leak can cause rough idle but my engine does have the setup holden supplied.

    Looking for for any ideas what it could be.

    Cheers.

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