Acura Integra All Integra Except ITR

mysterious CEL 73 on GSR

Thread Tools
 
Search this Thread
 
Old Sep 4, 2002 | 12:28 PM
  #1  
Y2KGreenGSR's Avatar
Thread Starter
Trial User
 
Joined: Sep 2000
Posts: 110
Likes: 0
From: Morris Plains, NJ, USA
Default mysterious CEL 73 on GSR

-copied from tech forum in hopes for a reply-

Ok i went drag racing about a month ago and must have over-reved the motor by shifting into 2nd instead of 4th. The motor started ticking more than usual (haven't had a valve adjustment in a while) and it was throwing a CEL. I brought it home and pulled a CEL 73 which happens to be the infamous "cylinder 3 missfire"
Today i decided to check out the motor armed with a leak-down tester and a compression tester.
The leakdown on cylinder #3 came to show a 5% pressure decay and i couldn't hear any air leaking from anywhere except a very little around the sparkplug threads where the hose wasn't seated. The compression test registered at 190 psi for cylinder #3 while the other 3 cylinders registered around 195 psi.
As far as I can deduct the internals of cylinder #3 are pretty acceptable.
I also inspected the plugs and made sure the #3 plug was getting spark. The #3 sparked fine but with a orange tinge to the spark color.
I put it all together, cleared out the ECU and took it for a test drive. Same ticking and when I pulled into the driveway the CEL came back on again.
All signs point to a bent valve but the diagnostics don't really prove that, and I'd hate to pull the head to find out it was something else.
Can somebody please help, am I forgetting something?
Thanks in advance
Reply
Old Sep 5, 2002 | 09:58 AM
  #2  
Y2KGreenGSR's Avatar
Thread Starter
Trial User
 
Joined: Sep 2000
Posts: 110
Likes: 0
From: Morris Plains, NJ, USA
Default Re: mysterious CEL 73 on GSR (Y2KGreenGSR)

Heeelllppppp!
Reply
Old Sep 5, 2002 | 10:37 AM
  #3  
Evil EG's Avatar
Honda-Tech Member
 
Joined: Mar 2002
Posts: 990
Likes: 0
From: West Burbs Chicago, IL, USA
Default Re: mysterious CEL 73 on GSR (Y2KGreenGSR)

Well I did the same thing I shift from 5th to 2nd going 70mph and I bent my valves. If theres a ticking im sure theres a valve or two bent.
Reply
Old Sep 5, 2002 | 11:20 AM
  #4  
Y2KGreenGSR's Avatar
Thread Starter
Trial User
 
Joined: Sep 2000
Posts: 110
Likes: 0
From: Morris Plains, NJ, USA
Default Re: mysterious CEL 73 on GSR (BVM)

oh well...that's what I figured happened
looks like the head is comming off tonight
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ZekeZG
Honda Accord (1990 - 2002)
5
Feb 18, 2016 10:29 PM
MeanusGeneus7
Honda CR-V & Element
14
Sep 18, 2012 08:35 PM
Tyteg
Acura Integra
3
May 16, 2007 07:30 AM
LudeyKrus
Honda Prelude
52
Feb 23, 2005 02:22 PM
Y2KGreenGSR
Tech / Misc
4
Sep 4, 2002 07:07 PM




All times are GMT -8. The time now is 02:31 AM.