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  1. #1
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    Join Date
    Oct 2022

    P0303/P0304 and new P0507 after installing new IACV

    There was no misfire codes before after installing my new sparkplugs and was told to install a new IACV (idle air control valve) because the car was constantly revving 1500 rpms to 2k rpms.

    I already swapped the ignition coils around, installed new injector o - rings, new throttle body mounting gasket, and added new coolant but didn't flush the old one out and now the exhaust has white smoking that smells like burning fuel.

    - also did an oil change

    - please if someone could respond and help, I am losing motivation for my first project car
    Last edited by talonXracer; 06-04-2009 at 07:45 PM.

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