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  1. M

    Narrow down P0301

    Just a follow up. I swapped coils and the misfire followed. $40 coil and problem solved.
  2. M

    Narrow down P0301

    In saying crappy gas I didn't mean bad or stale, I meant I maybe put the 10% ethanol in without realizing.
  3. M

    Narrow down P0301

    76k
  4. M

    Narrow down P0301

    Hi folks. I have a 2017 that threw a P0301 a couple months ago after it suddenly started to run *really* rough. It was obviously a misfire. The spark plug was badly fouled and replacing it cured it. A week or so ago it kinda started intermittently running a *little* rough. It didn't seem like...