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Condition when pressing the accelerator pedal hard will cause the car to jerk

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  • Condition when pressing the accelerator pedal hard will cause the car to jerk

    I bought an ‘05 MK5 and it has a problem where slamming down on the gas makes the car misfire and lag with the throttle however accelerating slowly I have no issues. What could this be and what should I do to tune it to make it a little more fun. I plan on adding aftermarket fuel injectors later and giving it a tune. What should I look for?

  • #2
    Bad injectors, spark plugs, dirty air filter, vacuum leak.

    We need to know more about the car.
    What model is it exactly ?
    Diesel 1.9, 2.0
    Petrol 1.4, 1.6, 2.0, 3.2
    MK4 GTI - Sold
    MK5 Jetta Turbo - Sold
    MK5 Jetta 2.Slow - Until it dies.

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