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stuttering

  1. Very odd problems

    Gen 3: 2005-2009
    Hey guys, I’m pretty new here so sorry for the lack of knowledge. But I have just finished up a Ej20x swap on my 2005 outback xt, and I have been experiencing very weird problems. First: once past 4500rpm or close to full throttle the car will sputter super hard and lose all power, there are no...
  2. Engine stumbles and bucks on acceleration

    Problems & Maintenance
    Hello all, I’m new to the outback group, having just bought my 2008 Outback 2.5I a few months ago. After purchasing the car I fixed the P0134 (or p0130, I can’t remember...) OBD code with a new Upstream O2 sensor. The problem went away. Recently, I started to notice a lack of power from the...
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