It is currently Fri Mar 29, 2024 2:47 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: P0420 code ??? Help
PostPosted: Wed Dec 06, 2017 7:38 pm 
Offline
SLE Member
SLE Member

Joined: Sun Jan 27, 2013 12:51 pm
Posts: 65
Year and Trim: 2000 Lesabre
CEL came on today, scanner says above code,,,car has 195k on it...how do I know IF its the convertor or the 02 sensor ??
Thx


Top
 Profile  
 
 Post subject: Re: P0420 code ??? Help
PostPosted: Thu Dec 07, 2017 10:05 am 
Offline
Posts like a Northstar
Posts like a Northstar

Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1813
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
if you have a scanner that reads rediness, you can see if the o2 sensor passed its self-diagnostic. if it did, sensor is ok but still could be many causes

look here....http://www.easterncatalytic.com/educati ... 420-codes/

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


Top
 Profile  
 
 Post subject: Re: P0420 code ??? Help
PostPosted: Thu Dec 07, 2017 1:41 pm 
Offline
Certified Bonneville Nut
Certified Bonneville Nut
User avatar

Joined: Mon May 10, 2010 6:11 pm
Posts: 9491
Location: Chicago, IL
Year and Trim: 2003 SLE
After 195k miles, it's probably the cat.

_________________
-Car Guy Carl
"Penelope" - 2003 SLE - 247k Miles
"Sydney" - 2000 Honda S2000 - 98k miles
Image


Top
 Profile  
 
 Post subject: Re: P0420 code ??? Help
PostPosted: Tue Dec 12, 2017 12:30 am 
Offline
SLE Member
SLE Member
User avatar

Joined: Wed Oct 18, 2017 9:26 pm
Posts: 40
Location: Martinsburg, IN
Year and Trim: '03 SLE Silver/Charcoal
I am at 183k and mine is doing this as well. I use Torque Pro to log the data and check readiness. I can clear it and it comes back... Cat is not clogged so I am running it as it is for now as we do not smog check and if they do they just look for codes... delete in the parking lot and pray it don't flag when tested when we did have testing here. I will eventually get it replaced when it warms up. and I replace the exhaust system...

_________________
2002 SLE "Frankenbonnie" 02 engine, 04 transmission, and a 03 PCM to make everything talk. Sadly I know longer own
1993 Suburban Zombie Apocalypse Assault Vehicle (GMC Edition)
2003 Yukon Black/Charcoal cloth 4x4 POW/MIA
2003 SLE Silver/Charcoal (New Acquisition)


Top
 Profile  
 
 Post subject: Re: P0420 code ??? Help
PostPosted: Mon Dec 18, 2017 9:00 pm 
Offline
SLE Member
SLE Member

Joined: Sun Jan 27, 2013 12:51 pm
Posts: 65
Year and Trim: 2000 Lesabre
I did the spark plug non fouler mod to the rear 02 sensor,,,light has been off for almost 200 miles :banana:


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours [ DST ]


Related topics
 Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. P0420 code fixed now (new cat) now p1441 code

gold8165

7

4048

Sat Jun 25, 2011 4:14 pm

mrbul35 View the latest post

There are no new unread posts for this topic. Code P0420

SSEI173

3

2933

Wed Feb 13, 2013 7:49 pm

SSEI173 View the latest post

There are no new unread posts for this topic. CODE P0420

bonnieandclyde

3

2215

Sat Dec 10, 2011 5:25 pm

bonnieandclyde View the latest post

There are no new unread posts for this topic. The dreaded P0420 code

Togemachi

2

2877

Tue Oct 11, 2011 9:52 pm

SSEiMan01 View the latest post

This topic is locked, you cannot edit posts or make further replies. The dreaded P0420 code

Togemachi

2

1740

Tue Oct 11, 2011 10:04 pm

Gumball View the latest post

 


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group


phpBB SEO