Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

HELP, Code 71 Cylinder Misfire

Thread Tools
 
Search this Thread
 
Old Jul 19, 2003 | 10:10 AM
  #1  
dcaccord's Avatar
Thread Starter
 
Joined: Feb 2002
Posts: 145
Likes: 0
From: Pittsburgh, PA, USA
Default HELP, Code 71 Cylinder Misfire

Car: 96 accord ex coupe (automatic)

Threw a code 71 I believe (7 long blinks, 1 short). The CEL has been on for a while. When I first checked it i thought i read a code 80 (EGR) and figured it wasn't that big of a deal. I didn't notice any performance decrease so I put it off .

Recently I noticed my car hesitating around 2500 rpm. Makes a badabadabada sound until I give it more gas. Today I rechecked the CEL code and read the 71. Checked my spark plugs and all of them are blistered white (hot condition). Any ideas where I should start and what to check before I decide to take it to a shop?

I can do basic maintenance and pretty knowledgeable around the engine. I just don't have a lot of tools or the facility to do any major work on my own. Thanks for any suggestions
Reply
Old Jul 19, 2003 | 10:25 AM
  #2  
carolinaACCORD's Avatar
Member
 
Joined: Aug 2001
Posts: 1,536
Likes: 1
From: Innovate...dont imitate, usa
Default Re: HELP, Code 71 Cylinder Misfire (dcaccord)

Have you changed the plugs yet? wires?
What about a valve adjustment?

try those, then reset the ecu and see if that helps.
Reply
Old Jul 19, 2003 | 02:59 PM
  #3  
dcaccord's Avatar
Thread Starter
 
Joined: Feb 2002
Posts: 145
Likes: 0
From: Pittsburgh, PA, USA
Default Re: HELP, Code 71 Cylinder Misfire (carolinaACCORD)

Going to try new plugs and wires tomorrow. I'm a little scared to try a valve adjustment by myself, i'm sure it's due though. thanks for the advice.
Reply
Old Jul 19, 2003 | 08:45 PM
  #4  
NathanMorris's Avatar
Honda-Tech Member
 
Joined: Mar 2003
Posts: 880
Likes: 0
Default Re: HELP, Code 71 Cylinder Misfire (dcaccord)

deffinately check the wires/plugs, also check the distributor cap, and make sure that the ignition system is working as it should be. If they are running hot, you may also try a slightly cooler range plug (one range colder). Also, are you running advanced or retarded timing?

Reply
Old Jul 21, 2003 | 04:05 AM
  #5  
dcaccord's Avatar
Thread Starter
 
Joined: Feb 2002
Posts: 145
Likes: 0
From: Pittsburgh, PA, USA
Default Re: HELP, Code 71 Cylinder Misfire (92Lx)

No advanced or retarded timing. Engine is stock (just i/h/e). Replaced the plugs and wires and pcv valve yesterday and still have the same condition. Just waiting to see if the CEL comes on in a few miles. Any chance it could be a clogged fuel filter or injectors? It only makes the studdering sound when i'm light on the gas at 2500 rpm. If the fuel filter or injector(s) were bad wouldn't it bog at lower rpms too?
Reply
Old Jul 21, 2003 | 07:02 AM
  #6  
GimpyAccord's Avatar
Honda-Tech Member
 
Joined: Aug 2002
Posts: 1,627
Likes: 0
From: Palm Bay, FL
Default Re: HELP, Code 71 Cylinder Misfire (dcaccord)

clean the egr dude...
Reply
Old Jul 21, 2003 | 09:52 AM
  #7  
dcaccord's Avatar
Thread Starter
 
Joined: Feb 2002
Posts: 145
Likes: 0
From: Pittsburgh, PA, USA
Default Re: HELP, Code 71 Cylinder Misfire (GimpyAccord)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GimpyAccord &raquo;</TD></TR><TR><TD CLASS="quote">clean the egr dude...</TD></TR></TABLE>

Thanks Gimpy. Forgive me I'm still learning. I did some research to learn waht the egr does. Clogged egr and ports sounds like the problem. Found a lot of EGR Block threads also. I am considering doing this. I guess I still need to have the EGR and ports cleaned (to remove the CEL) even if I block it? Also, read that this problem might be a recall issue, apparently it is common.

Man, being at work when you know your car needs some TLC sucks =!
Reply
Old Jul 21, 2003 | 02:20 PM
  #8  
blackfrohatch's Avatar
 
Joined: Nov 2002
Posts: 210
Likes: 0
From: naples, fl, US
Default Re: HELP, Code 71 Cylinder Misfire (dcaccord)

yea it is most likly the egr....i fixed a 98 accord ex with the same problem...turned out to be the egr was blocked.....but in ur situation i would take that plate off and check all the ports...when they get cloged it will dump all the hot exhaust into one or two cylinders and cause a missfire. but if it was coding for a egr then it is probly that.
Reply
Old Jul 21, 2003 | 02:43 PM
  #9  
98AccordEX's Avatar
Junior Member
 
Joined: Dec 2001
Posts: 799
Likes: 0
From: PA, USA
Default Re: HELP, Code 71 Cylinder Misfire (blackfrohatch)

check the injectors. that was my problem when i threw a 71. the tip (cant think of the name right now) came off the injector and just sat a little further down so it shot a stream of fuel instead of misting
Reply
Old Jul 21, 2003 | 05:22 PM
  #10  
dcaccord's Avatar
Thread Starter
 
Joined: Feb 2002
Posts: 145
Likes: 0
From: Pittsburgh, PA, USA
Default Re: HELP, Code 71 Cylinder Misfire (98AccordEX)

Update, I cleaned the EGR and ports on the IM. I couldn't believe how much carbon deposit was in the EGR and the ports. Only one port was partially open, the other three were totally clogged. Cleaned around the injectors too while the fuel rail was off.

Couldn't clean/check the EGR valve. I couldn't find my 1/4-inch 12mm socket . Will do that and replace the EGR valve gasket tomorrow.

Anyway the hesitation is gone. Feels much better. Reset the ECU. Won't know if I'm totally done till tomorrow on the way home from work when the CEL would come on.

Thanks for the help guys
Reply
Old Jul 21, 2003 | 09:15 PM
  #11  
GimpyAccord's Avatar
Honda-Tech Member
 
Joined: Aug 2002
Posts: 1,627
Likes: 0
From: Palm Bay, FL
Default Re: HELP, Code 71 Cylinder Misfire (98AccordEX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98AccordEX &raquo;</TD></TR><TR><TD CLASS="quote">check the injectors. that was my problem when i threw a 71. the tip (cant think of the name right now) came off the injector and just sat a little further down so it shot a stream of fuel instead of misting</TD></TR></TABLE>

its called the pintle

Glad to hear the car is running better!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rukawa1one
Honda Civic / Del Sol (1992 - 2000)
3
Feb 15, 2005 05:53 PM
Schmitey
Honda Accord (1990 - 2002)
1
Aug 26, 2004 11:19 AM
Shakes
Honda Prelude
3
Apr 18, 2004 07:20 AM
Babybluegsr92
Acura Integra
6
Jan 24, 2002 05:31 AM




All times are GMT -8. The time now is 03:03 AM.