Cavalier Starting in the 1980s. the Cavalier made a name for itself by offering an affordable 2 and 4 door compact.
Platform: J-body

Catalytic Converter help! Engine Code P0420

Thread Tools
 
Search this Thread
 
Old March 7th, 2011, 7:56 AM
  #1  
CF Beginner
Thread Starter
 
SureShot434's Avatar
 
Join Date: Mar 2011
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default Catalytic Converter help! Engine Code P0420

So i loaned my car to my best friend for a couple months and they beat the ba-jesus out of it and the brakes are shot and i have an engine code. The code is P0420. I might have to replace my Catalytic Converter. Are there any DIY's on how to do this?

Also ay input you have would be helpful. Thanks
Old March 7th, 2011, 10:06 AM
  #2  
CF Beginner
 
themidiman's Avatar
 
Join Date: Mar 2011
Location: Michigan
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default

i would either get a scan tool, or have it diagnosed for sure as a converter. So many times those codes are for something A LOT cheaper than a converter
Old March 7th, 2011, 11:02 AM
  #3  
CF Beginner
 
Drew82's Avatar
 
Join Date: Jan 2011
Location: Florida
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Default

Sounds like it is burning lean... I wouldn't jump to any conclusions. Bring it to your local mechanic and they should be able to help you out. 2007 Volkswagen Jetta 2.5 Portland Oregon

Last edited by Drew82; December 13th, 2011 at 7:36 PM.
Old March 7th, 2011, 8:57 PM
  #4  
Super Moderator
Professional Mechanic
 
MDTAHOE's Avatar
 
Join Date: Nov 2008
Location: Bowie, MD
Posts: 2,950
Likes: 0
Received 3 Likes on 3 Posts
Default

99% of the time a catalyst efficiency code mean the cat is no longer working as it should.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CableSux
Express & G-Series Vans
10
August 10th, 2017 10:28 PM
franke
General Tech
4
December 14th, 2012 3:50 PM
CeS
S-10 & Blazer
0
June 12th, 2012 3:19 PM
jtlonghorn
Silverado & Fullsize Pick-ups
3
February 9th, 2012 4:07 PM



Quick Reply: Catalytic Converter help! Engine Code P0420



All times are GMT -5. The time now is 10:03 PM.