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.

 

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.

 

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.

 

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

 

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

 

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

 

<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

 

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

 

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.

 

up for an answer, i got the same problem

 

stock motor? wuts ur setup?
check for an exhaust leak.

 

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.