Bad O2 sensor? - Honda-Tech

Go Back   >
Log In 


Bad O2 sensor?

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-15-2011, 07:57 AM   #1
Honda-Tech Member
Thread Starter
 
bpl0807's Avatar
 
Join Date: Jul 2011
Location: Indianapolis, IN
Posts: 56
Default Bad O2 sensor?

So I have a 2000 Civic EX coupe, and a few months ago I had a check engine light, took it to advanced auto parts and got scan on it, and it was a bad oxygen sensor. So the guy reset the code so the light went away, well I'm planning on replacing it this weekend, but I want to verify it's still bad since the light hasn't come on since. One thing that's for sure is that it's never been replaced any my car has 129K miles on it, and the other thing I notice and it guzzles gas in the past year or so. And the final thing I notice about my car in the past few months is that it runs really choppy or idles very low about 500 rpms when at a stop light. So i'm pretty sure that it all points to a bad Cat or O2 sensor, but does anyone know what this could be? Thanks any help is appreciated.
bpl0807 is offline   Reply With Quote
Old 10-15-2011, 09:46 AM   #2
The Grumpiest
iTrader: (4)
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 28,337
Default Re: Bad O2 sensor?

How do you figure bad cat or O2 sensor with no CEL? When was the last full tuneup? Did you check timing?
grumblemarc is offline   Reply With Quote
Old 10-15-2011, 11:13 AM   #3
Honda-Tech Member
 
Join Date: Jun 2011
Posts: 2,216
Default Re: Bad O2 sensor?

Quote:
Originally Posted by grumblemarc View Post
How do you figure bad cat or O2 sensor with no CEL? When was the last full tuneup? Did you check timing?
He said it was scanned by parts store and it came up o2, but they just reset the cel and has not come again.

Dude, change it, I have 246k miles and just did mine with no check engine light.

I had noticed bad gas mileage black tail pipe exhaust on my back bumper.

I did the plugs first it got better, but then even with a CEL I did the o2 anyway.
motegicivic is offline   Reply With Quote
Old 10-15-2011, 12:09 PM   #4
The Grumpiest
iTrader: (4)
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 28,337
Default Re: Bad O2 sensor?

I guess I'm not one for just replacing parts on hunches.
grumblemarc is offline   Reply With Quote
Old 10-15-2011, 01:27 PM   #5
Honda-Tech Member
 
virgineg6's Avatar
 
Join Date: Jun 2010
Location: Fallbrook,Ca
Posts: 935
Default Re: Bad O2 sensor?

Just throw money at it, eventually youll replace the right part.
virgineg6 is offline   Reply With Quote
Old 10-15-2011, 03:54 PM   #6
Honda-Tech Member
 
Join Date: Jun 2011
Posts: 2,216
Default Re: Bad O2 sensor?

Guys he said the code came up originally, when they reset the code, it is just masking the problem, sometimes parts fail without codes, when the cel comes on typically it is when the part is way out of spec. MAP sensors and O2 sensors can get out of spec and not set off CEL's.
motegicivic is offline   Reply With Quote
Old 10-15-2011, 04:01 PM   #7
The Grumpiest
iTrader: (4)
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 28,337
Default Re: Bad O2 sensor?

And the code never came back. He'd be best served by doing simple maintenance like a tune rather than replacing an O2 sensor that only threw a CEL once. Hell. It could be an exhaust leak.
grumblemarc is offline   Reply With Quote
Old 10-15-2011, 05:13 PM   #8
Honda-Tech Member
 
rhymeshark916's Avatar
 
Join Date: Mar 2008
Location: Sacramento, CA, USA
Posts: 1,442
Default Re: Bad O2 sensor?

I'd say full tune up and if gas mileage is still under par, then o2(s) need replacements. Maybe even a new CAT. Check Amazon for great deals.
rhymeshark916 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
NEED HELP!!! 96 accord Matt Weber Tech / Misc 3 03-23-2016 12:27 AM
Sputtering/Misfire Question (solved) the6thhascome Honda Civic / Del Sol (1992 - 2000) 19 10-17-2014 04:01 PM
Battery Light stays on SL0RD Honda Civic / Del Sol (1992 - 2000) 2 02-02-2012 08:18 AM
Z6, still spitting out black stuff from exhaust xnvb Honda Civic / Del Sol (1992 - 2000) 8 09-14-2008 02:37 PM
O2 sensor keeps going bad iluvcivics Honda Civic / Del Sol (1992 - 2000) 9 09-12-2006 12:29 PM


Tags
02, 1997, bad, cat, check, civic, gas, honda, hondatech, mileage, o2, oxygen, sensor, si, tech

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 -8. The time now is 08:20 PM.



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 Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.