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People keep telling me it can't be an 02 sensor, and other people keep telling me that an 02 sensor has given them a misfire so I'm not sure what to do. I've replaced the plugs (old ones were in bad condition, obviously old, covered in build up, cheap champion plugs) and it's still misfiring. I tried clearing the codes but still running rough (only ran it for a minute or 2 after clearing codes if that matters). My question is, what do I try next? Any help would be greatly appreciated. Thank you!

Screenshot of codes

  • Have you done a compression test? Try unplugging the upstream o2. See if it runs better. – Ben Feb 26 at 12:52
  • Also, have you checked the ignition coils? – Daniel Feb 26 at 12:57
  • "02 sensor has given them a misfire" O2 sensors are not used to set misfire codes. – Moab Feb 26 at 23:05

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