MULTIPLE CODES P1399 P300 P301 P304

  • Tiny
  • GREG WITTAL
  • 2003 Honda Odyssey
  • 90,000 miles

I need a HONDA DRIVEABILITY EXPERT. This van had the rear(firewall)cylinder head camshaft break, it damaged the head, the timing belt was in tact and was driven a short ways.I put on a used cylinder head with cam and rockers, new timing belt, tensioner and idler pulleys, water pump, Spark Plugs, EGR Valve, Flushed crankcase and changed filter, Changed trans fluid 4 times, RECHECKED -- Camtiming and valve clearences are within spec. Swaped coils and plugs around Missfire still on same cylinders. Compression #1-220# #2-220 #3-230 #4-225 #5-225 #6-225 It idles good and has Lots of power when you step on it. It only sets codes on highway in overdrive converter locked up.

Wednesday, March 28th, 2012 AT 7:58 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Go to this walk thru link: http://www.2carpros.com/articles/engine-misfires-or-runs-rough

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Wednesday, March 28th, 2012 AT 8:07 PM

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