CODE PO300 TRIED TO FIX

  • Tiny
  • brookmiller
  • 2003 Nissan Sentra
  • 179,000 miles

I have the code po300 and ive tried to fix it and spending countless money on parts I don't need cause its not helping the misfire issue need help

replaced the wire set and cleaned all the sensors and everything but the problem is still there?

Thursday, October 11th, 2012 AT 3:28 AM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,806 posts

Random multi cylinder misfire. May be a coil problem, plugs, egr valve vacuum leaks I would try and get a run on an engine oscilloscope, this will help nail down the exact cause of this problem.

Was this
answer
helpful?
Yes
No
Thursday, October 11th, 2012 AT 8:26 AM

Please login or register to post a reply.

Similar Questions