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Stuttering at 4500 on the dot.

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    Stuttering at 4500 on the dot.

    It stutters quite often at WOT, at 4500 rpms. Its almost a complete loss of power. a miss i guess? What would be causing this? ITS ALWAYS AT 4500. Its got a decently new rotor on it and the plugs are bosch supers.

    #2
    Could be a fuel problem (weak pump, pickup screen being plugged by debris in the tank, clogged injectors, etc), a spark problem (bad wires or coil), or a worn AFM. The procedures for testing the fuel system and AFM are in the Bentley manual.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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