S2KI Honda S2000 Forums

S2000 Under The Hood S2000 Technical and Mechanical discussions.

CEL Code P0420

Thread Tools
 
Old 01-21-2010, 06:21 AM
  #11  
Moderator
Moderator
 
Billman250's Avatar
 
Join Date: Jul 2002
Location: Long Island, New York
Posts: 22,123
Received 1,401 Likes on 839 Posts
Default
Definitely a cat on it's way out. not a bad 02.

You could just buy spacers for the rear o2 and call it a day

BUT...this is considered emmisions tampering...so use discretion.
Billman250 is offline  
Reply Like
Old 04-22-2010, 07:10 PM
  #12  
Registered User
 
nofrenfish's Avatar
 
Join Date: Mar 2010
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default
having the same issues, but i have aftermakert headers, should i change the spark-plugs, will post pics lata
nofrenfish is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CAT CEL's Came and Went
davers
S2000 Under The Hood
12
06-25-2018 11:39 PM
Fixing CEL 0139
30r Dreams
S2000 Under The Hood
3
02-13-2011 10:39 AM
Throwing a CEL P-0420
Brian Si
S2000 Under The Hood
1
01-03-2010 07:31 PM
broken O2 senser again and CEL
MegaPower
S2000 Under The Hood
10
06-22-2009 01:35 PM
CEL with hollowed out cat
Venomous S
S2000 Under The Hood
10
06-20-2004 03:04 AM
Back to Subforum
S2000 Under The Hood
View Next Unread
Replacemnt roof and frame




Advanced Search
Quick Reply: CEL Code P0420


Reply Closed Thread Share

All times are GMT -8. The time now is 03:17 AM.