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MSP engine bug at 3500~4000 rpm

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    MSP engine bug at 3500~4000 rpm

    Hello,

    First time posting here. I drive a 2003.5 Protege Mazdaspeed. I have been experiencing a big loss of power at 3500~4000 rpm lately.The car seems to lose all power when I try to push it a little not too long after starting the car. Once I've driven the car for a little while, the problem goes away. It feels as if the turbo starts spooling and all of the sudden it cuts. Took it to the dealer yesterday, the changed a gas recycling valve but it didn't do anything. I live in Canada and temperatures at this time of the year are pretty low (-50F to -77F). I always let the car warm up until the temp. needle is in the right temperature range. Has anybody experienced this problem before? Thank you for your help!

    Spooler

    #2
    is your car modified?

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      #3
      No, it's bone stock. The dealer spent the whole day on the car yesterday and they still don't have a clue what the problem is. What worries me is that I've posted this message in a few forums and no one seems to have experienced this problem before.

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        #4
        The dealer found the problem. There was a leak in a vaccum hose going from the turbo to the engine. The put a plastic fitting between two hoses, which doesn't really reasure me.......

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