LS1TECH - Camaro and Firebird Forum Discussion

General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds

Bad Cats or O2 sensor?

Thread Tools
 
Search this Thread
 
Old 08-12-2009, 01:19 PM
  #1  
Launching!
Thread Starter
iTrader: (7)
 
Chronicle's Avatar
 
Join Date: Jun 2008
Location: Maryland
Posts: 224
Likes: 0
Received 0 Likes on 0 Posts
Default Bad Cats or O2 sensor?
Okay, so my friend's Subaru overheated this past weekend, but after letting her car cool off, she could drive it again. On her way home, she got the SES light. The code it spit out was P0420 (Catalyst Efficiency Low). When cruising the car, the rear O2 sensor was freaking out, so is this a Cat problem or a bad O2 sensor?
Chronicle is offline  
Reply Like
Old 08-12-2009, 01:54 PM
  #2  
TECH Senior Member
 
2001NBMZ28's Avatar
 
Join Date: Dec 2001
Location: Jacksonville, FL
Posts: 5,399
Likes: 0
Received 3 Likes on 3 Posts

Default
Probably the CAT, I'd clear the code and see if it comes back.
2001NBMZ28 is offline  
Reply Like
Old 08-12-2009, 02:10 PM
  #3  
Launching!
Thread Starter
iTrader: (7)
 
Chronicle's Avatar
 
Join Date: Jun 2008
Location: Maryland
Posts: 224
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by 2001NBMZ28
Probably the CAT, I'd clear the code and see if it comes back.
The code has been cleared, how long will it be until it comes back?
Chronicle is offline  
Reply Like
Old 08-25-2009, 10:38 AM
  #4  
TECH Enthusiast
 
jam01's Avatar
 
Join Date: Feb 2005
Location: south jersey. again
Posts: 734
Likes: 0
Received 0 Likes on 0 Posts
Default
i have the same code, i cleared it 4 times. it came back after driving about 1500 miles.
jam01 is offline  
Reply Like
Tags
Back to Subforum
General Maintenance & Repairs
View Next Unread
ok so im a little overdue on my oil change woops!...




Advanced Search

All times are GMT -5. The time now is 03:33 PM.