Cylinder one misfire

2011 KIA RIO
13,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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PACHYAUTO63
  • MEMBER
  • 40 POSTS
Changed coil and plugs, but still misfire on one. this vehicle is GDI.
Feb 20, 2019 at 7:02 AM
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SCGRANTURISMO
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 4,897 POSTS
Hello,

This could be a fuel injector problem with number one cylinder injector. I have included for you in the diagrams below a step by step troubleshooting guide for Direct Trouble Code(DTC) P0301. Please go through it and let us know what you find out. I also have included a link on how to get DTCs from your vehicles Power-train Control Module (PCM), AKA, the "computer", as well as resetting it.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Thank you,
Alex
2CarPros
Feb 20, 2019 at 11:05 AM
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