Notices
Honda Prelude All Model Preludes

What does a bad O2 sensor look like? Running rich CEL (Pics)

Thread Tools
 
Search this Thread
 
Old 07-25-2007, 06:24 PM
  #1  
Honda-Tech Member
Thread Starter
 
OutlawCL's Avatar
 
Join Date: Aug 2003
Location: Bay Area
Posts: 256
Likes: 0
Received 0 Likes on 0 Posts
Default What does a bad O2 sensor look like? Running rich CEL (Pics)

I've searched and haven't found a clear answer to my question. Here's some pics of my primary O2 sensor. I still haven't pulled out the secondary one yet.











I've read on here that I either need to replace the O2 sensors or get a valve adjustment to fix my problem. Is this right? Thanks.
Old 07-25-2007, 07:02 PM
  #2  
Junior Member
 
Rudaluda's Avatar
 
Join Date: Aug 2005
Location: McGuire AFB, NJ
Posts: 420
Likes: 0
Received 0 Likes on 0 Posts
Default

whats your problem and whats your code. code 42 ro something like that is o2 sensor. you only need a vlave job if they are ticking and all hondas tick anyways.
Old 07-25-2007, 07:17 PM
  #3  
Honda-Tech Member
 
street_ride14's Avatar
 
Join Date: Mar 2006
Location: MA
Posts: 1,528
Likes: 0
Received 1 Like on 1 Post
Default Re: (Rudaluda)

You can not just LOOK at an o2 Sensor and see if needs replacement. If it an OBD2, the car will most likely throw a CEL for it ..... but in some instances i've seen that it doesn't.

Old 07-25-2007, 07:38 PM
  #4  
Honda-Tech Member
 
PirateMcFred's Avatar
 
Join Date: Oct 2003
Location: Betonwüsten, USA
Posts: 3,732
Likes: 0
Received 2 Likes on 2 Posts
Default Re: What does a bad O2 sensor look like? Running rich CEL (OutlawCL)

My O2 sensor went bad while I was logging it. it looks like this:

Old 07-25-2007, 11:30 PM
  #5  
Honda-Tech Member
Thread Starter
 
OutlawCL's Avatar
 
Join Date: Aug 2003
Location: Bay Area
Posts: 256
Likes: 0
Received 0 Likes on 0 Posts
Default

Guess people didn't catch the tail end of the title "Running rich CEL." I'm getting a CEL for running rich.

Old 07-26-2007, 05:36 AM
  #6  
Honda-Tech Member
 
street_ride14's Avatar
 
Join Date: Mar 2006
Location: MA
Posts: 1,528
Likes: 0
Received 1 Like on 1 Post
Default Re: (OutlawCL)

Wha ? Your car tells you when you're running Rich or Lean ??

Old 07-26-2007, 05:43 AM
  #7  
Honda-Tech Member
 
A Blue Lude's Avatar
 
Join Date: Nov 2004
Posts: 1,682
Likes: 0
Received 0 Likes on 0 Posts
Default Re: What does a bad O2 sensor look like? Running rich CEL (PirateMcFred)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">My O2 sensor went bad while I was logging it. it looks like this:</TD></TR></TABLE>

That's some efficient looking driving you're doing there
Old 07-26-2007, 07:47 AM
  #8  
Honda-Tech Member
 
PirateMcFred's Avatar
 
Join Date: Oct 2003
Location: Betonwüsten, USA
Posts: 3,732
Likes: 0
Received 2 Likes on 2 Posts
Default Re: What does a bad O2 sensor look like? Running rich CEL (A Blue Lude)

Ya Blue, I must have been getting 10 MPG at the time. lol. If nothing else I was efficiently spending money while making that data log.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OutlawCL &raquo;</TD></TR><TR><TD CLASS="quote">Guess people didn't catch the tail end of the title "Running rich CEL." I'm getting a CEL for running rich.</TD></TR></TABLE>

^^ if that comment is directed at me then hey I was running rich too. At least at WOT I was at 13:1 or so until the O2 quit.

Pirate
Old 07-26-2007, 11:14 AM
  #9  
Honda-Tech Member
Thread Starter
 
OutlawCL's Avatar
 
Join Date: Aug 2003
Location: Bay Area
Posts: 256
Likes: 0
Received 0 Likes on 0 Posts
Default Re: What does a bad O2 sensor look like? Running rich CEL (PirateMcFred)

Nah bro it wasn't directed at you. It was for...

"<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rudaluda &raquo;</TD></TR><TR><TD CLASS="quote">whats your problem and whats your code. code 42 ro something like that is o2 sensor. you only need a vlave job if they are ticking and all hondas tick anyways. </TD></TR></TABLE>

I just looked at the ECU trouble codes page and the CEL is for "running too rich or too lean. How do I fix my problem? Thanks.
Old 07-27-2007, 12:17 AM
  #10  
Honda-Tech Member
 
milano2kdc2's Avatar
 
Join Date: Jul 2003
Location: bay area, ca
Posts: 1,842
Likes: 0
Received 0 Likes on 0 Posts
Default Re: What does a bad O2 sensor look like? Running rich CEL (OutlawCL)

up for an answer, i got the same problem
Old 07-28-2007, 02:08 PM
  #11  
Honda-Tech Member
 
eggie75's Avatar
 
Join Date: Nov 2003
Location: va, usa
Posts: 328
Likes: 0
Received 0 Likes on 0 Posts
Default

stock motor? wuts ur setup?
check for an exhaust leak.
Old 07-28-2007, 11:27 PM
  #12  
Honda-Tech Member
Thread Starter
 
OutlawCL's Avatar
 
Join Date: Aug 2003
Location: Bay Area
Posts: 256
Likes: 0
Received 0 Likes on 0 Posts
Default Re: (eggie75)

Stock 2000 H22A4 with AEM CAI so basically stock. I'll check for an exhaust leak.

So how exactly can I diagnose an O2 sensor? I have no idea on how to log information like Pirate McFred. Thanks for the tips folks.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
importdreamer
Honda Civic / Del Sol (1992 - 2000)
6
05-26-2007 06:58 PM
boost fed ls
Tech / Misc
1
08-31-2004 07:45 PM
Phoenix_ITR
Acura Integra Type-R
4
07-09-2003 04:21 AM
agent marlon
Honda Civic / Del Sol (1992 - 2000)
5
01-29-2003 01:22 PM
Xerxes
Forced Induction
1
03-04-2002 05:17 PM



Quick Reply: What does a bad O2 sensor look like? Running rich CEL (Pics)



All times are GMT -8. The time now is 07:43 PM.