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spi lacks power

  1. SPI hesitation when accelarating from stand still

    General Technical Chat
    My focus 01 focus, manual transmission can't spin the tires from stand still. Even when the engine is in neutral and idling and I hit the gas all the way it seems sluggish to rev up. This is accompanied by e humming noise as the engine revs up. Once it goes about 2500-3000 rpm it seems to have...
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