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IAC Valve stuck...

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    IAC Valve stuck...

    I had some idle issue(low idle at cold). I unbolt the Idle Air Control valve and the valve is stuck close. I have found my issue ...

    I dismantled this part clean as much as possible . Bolt on the engine : My idle at cold at 1200 rpm hot at 850 rpm : Perfect!!!

    today I start my engine : same idle issue!!!

    Valve is still in close position!!!
    Any idea to fix this ? the mazda IAC is very very expensive (800$) I heard about BMW IAC valve is a bolt on replacement. Anybody with more info on this?

    #2
    Check for corrosion on the terminals of the plug.

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