Cylinder 3 and 4 misfire - Honda Accord Forum - Honda Accord Enthusiast Forums

Go Back   Honda Accord Forum - Honda Accord Enthusiast Forums > General > General Tech Help

LinkBack Thread Tools Search this Thread
Old 11-27-2008, 11:16 AM
Join Date: Feb 2007
Posts: 60
Default Cylinder 3 and 4 misfire

'96 Accord, VTEC, auto, 146k. Car was running good, no serious issues, mileage isn't what I was expecting (25 MPG on a long freeway trip), but anyway. I was passing slower traffic on a two lane, needed a little more speed to pass, stepped into the throttle a little harder, she downshifted into second and began missing, sputtering and slowing down. I thought it was going to die right there. It continued running but is running REALLY rough. The codes are O2 heater circuit (I knew about that), but the new ones are P303 and P304 (cylinders 3 and 4 misfiring), and a P1300 (Multiple Cylinder Misfire Detected). I reset the codes, still rough. Pulled out the plugs, grounded them and checked them on their respective ignition wires, they were both firing fine. Have no clue what to look at next. Thank You
Reply With Quote
Old 11-27-2008, 02:32 PM
finch13's Avatar
Been Around A Long Time Member
Join Date: Jun 2007
Location: St. Paul, MN
Posts: 7,381
Send a message via AIM to finch13
Default RE: Cylinder 3 and 4 misfire

My moms Acura MDX just had this same issue and apparently a valve adjustment was needed... this is on the J35 V6 motor though.
1999 Honda Accord LX F23A1 5MT - 213,000m

** On the road to ASE Certification **
Reply With Quote
Old 11-28-2008, 10:00 AM
Join Date: Feb 2007
Posts: 60
Default RE: Cylinder 3 and 4 misfire

It came suddenly when I was trying to pass another car and needed more speed. Other things it is doing, when it is cold, it takes about a mile of driving before it will go over 30 MPH. Also when cold, to get it to upshift into 3 and 4, I need to lift off the throttle like it was a stick. When I lift it upshifts. At highway speeds, it occasionally jerks. Need some good advice on this one. Oh yea, it DOES have a brand new timing belt.
Reply With Quote
Old 12-01-2008, 09:25 AM
Join Date: Feb 2007
Posts: 60
Default RE: Cylinder 3 and 4 misfire

Anyone have any ideas on what is causing this issue? It came on suddenly, when the engine was in higher rev's, so I do not think it is valve adjustment.
Reply With Quote
Old 12-01-2008, 10:12 PM
Join Date: Feb 2007
Posts: 60
Default RE: Cylinder 3 and 4 misfire

Found the problem, the timing belt had jumped a tooth. Why would a new timing belt with only a few hundred miles on jump a tooth? How much play is allowable? I have nearly an inch play on the rear side.
Reply With Quote
Old 12-02-2008, 10:05 PM
TexasHonda's Avatar
Super Moderator : And A Texan
Join Date: Feb 2007
Location: Katy, TX
Posts: 9,352
Default RE: Cylinder 3 and 4 misfire

You may not have the timing belt (TB) tensioner engaged correctly on the pivot stud on the oil pump cover. This would prevent proper TB tensioning and perhaps allow TB to jump a lug. Most likely reason is the TB was misinstalled one lug off. Be glad it's not worse (bent valves), and make sure of TB alignment, TB tensioner installation, and correct belt tension adjustment procedure.

The 94-97 Accord shop manual from Online Manuals DIY post may help.

good luck
See you down the ROW
2005 Toyota Matrix
2003 Acura MDX
2006 Acura TSX
2010 Acura TSX
Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
2000 Accord EX V6 Multiple Cylinder Misfire Resatimm General Tech Help 12 04-28-2016 06:56 PM
cylinder misfire Rena General Tech Help 9 10-25-2012 10:56 PM
Misfire in cylinder 2 zairas General Tech Help 2 11-10-2009 07:01 PM
Cylinder 1 misfire... finch13 General Tech Help 1 12-23-2007 06:01 AM
"cylinder 2 misfire detected" caverspencer General Tech Help 3 11-16-2007 02:58 AM

1999, 2008, 3, 97, 98, accord, acura, cylinder, detected, honda, mdx, misfire, misfires, misfiring, v6

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 05:33 AM.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for content, comments, or advertising. is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse in any way. Copyright/trademark/sales mark infringements are not intended or implied.