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hesitation

  1. FA20DIT - 2.0L Direct-Injection/Turbo (2014-2018)
    I had the p0420 code come on about a week ago saying Catalytic converter system bank 1 below threshold. I started experiencing some sort of hesitation/studder feeling when driving on the interstate a couple days ago. It only happens when at highway speeds (65-75). I haven’t had the time to take...
  2. Engine Management, Tuning and Datalogging
    Hey everybody. I finally got my car on the road and am in the process of E-tuning. We got it running pretty good and decided to start adding ethanol into the mix, car has flexfuel. At E35 I have an aggressive hesitation in 1st and 2nd gear as boost comes on or once in boost. Tuner thinks it is...
  3. EJ20 - 2.0L Turbocharged
    Short story: 2004 EJ205 Forester 2.0 Turbo will now hardly pull at all below 3500RPM, and I am struggling even to increase the RPM when flooring the throttle. I achieve increased RPM eventually by pumping the throttle. See this video: In the beginning of the video I simply press the gas pedal...
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