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1999 Honda Odyssey DTC codes P1399, P0300, P0301, P0302, P0306

Tiny
RATTREN
  • MEMBER
  • 1999 HONDA ODYSSEY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,000 MILES
MY ODYSSEY JUST STARTED RUNNING ROUGH AFTER A 20 MIN DRIVE AND HAS BEEN DOIN IT EVERSINCE.I LOOK AT ALL THE POSTS ON GOOGLE AND GET A LOT OF DIFF ANSWERS
. REPAIR SOLUTIONS. COM SUGGESTED A VALVE ADJUSTMENT?
I BASICALLY HAVE MULTIPLE CYL MISFIRES.P1399, P0300, P0301, P0302, P0306
COULD A BAD CAT CONVERTER CAUSE THIS? IF SO SHOULDNT I GET A CODE RELATED TO CAT CONV?
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Sunday, October 10th, 2010 AT 4:22 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi rattren, Welcome to 2carpros and TY for the donation

This is gonna be a tough one:

Run Lucas injection cleaner thru the fuel system and see what happens-don't work do below

Misfires galore-Okay clean out the EGR valve then check the fuel pressure and comeback with the readings and also do an engine compression check. I'll be needing this too.
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Monday, October 11th, 2010 AT 4:37 AM
Tiny
HONDA TECH 1818
  • MECHANIC
  • 536 POSTS
Check all the ignition coils, one of them could be bad causing misfire codes.
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Sunday, October 17th, 2010 AT 1:14 PM

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