DLC code P0300 random misfire detected

Tiny
MOUSE357
  • MEMBER
  • 2012 DODGE RAM
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 173,563 MILES
Had the code previous P0300, changed the plugs it had Autolite AP do not remember the number on them. But the book didn't call for them.
Long story be short we put the proper plugs in the engine. I have an OBD 2 INNOVA 3100 C scanner. Not sure how to detect which cylinder or cylinder are misfiring.
Could someone please help?
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Saturday, July 4th, 2020 AT 5:18 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
Good evening,

I would start by checking the compression to make sure there is no issues.

https://www.2carpros.com/articles/how-to-test-engine-compression

Also, a common issue is low fuel pressure. You can rent a tester at a parts store.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Roy
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Saturday, July 4th, 2020 AT 5:31 PM

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