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    Sudden drop in speed

    I have a 2001 Protege 5'. When driving normally or at high speeds, occasionally the speed will drop to 60 and will not go higher than that. I also get a rough ride, choking, but not stalling at the same time. After a few minutes it will stop and drive normally. I have recently changed my Air Flow Sensor hoping it would resolve same problem. Any suggestions.

    #2
    have you reset your computer after changing the airflow meter

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      #3
      or fuel filter
      sigpicSLICK PROTEGE

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        #4
        It sounds like you have an air leak close to the manifold. Check the black resonator on top of the manifold. If it is broken or leaking, it will give the same symptons.

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