Header, Intake, & Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

High Flow cat problem......

  #1  
Old 09-14-2006, 09:25 AM
Thread Starter
Join Date: Aug 2006
Posts: 15
Default High Flow cat problem......

My girlfriends car is a 1998 Honda Civic EX 2dr coupe, it has a 4-2-1 header on it, a high flow cat and a catback. The problem is that there isn't an O2 sensor hooked up to the cat (universal kind without any O2 sensor wholes), and she has to go for emission testing soon. I know I have to make a whole and weld in a bung, but I dont know where to weld the bung for the O2 sensor. Should it be before the cat (by the two bolt flange)or right after the cat?

 
  #2  
Old 09-14-2006, 09:23 PM
Join Date: Oct 2005
Location:
Posts: 123
Default RE: High Flow cat problem......

right after the cat...
 
  #3  
Old 09-14-2006, 11:19 PM
Senior Member
Join Date: Sep 2005
Location:
Posts: 1,930
Default RE: High Flow cat problem......

Should be two O2 sensors, one before the cat and one after.
 
  #4  
Old 09-15-2006, 03:02 PM
Thread Starter
Join Date: Aug 2006
Posts: 15
Default RE: High Flow cat problem......

ORIGINAL: Kedawei

Should be two O2 sensors, one before the cat and one after.

There is one in the header, so the second one that I need to put in should go after the cat?
 
  #5  
Old 09-15-2006, 03:07 PM
Join Date: Sep 2006
Location:
Posts: 175
Default RE: High Flow cat problem......

Thats what it sounds like when I read it.
 
  #6  
Old 09-15-2006, 05:03 PM
Senior Member
Join Date: Sep 2005
Location:
Posts: 1,930
Default RE: High Flow cat problem......

Yep, after it.
 
  #7  
Old 09-16-2006, 05:16 PM
Thread Starter
Join Date: Aug 2006
Posts: 15
Default RE: High Flow cat problem......

ORIGINAL: Kedawei

Yep, after it.

Awesome thanks guys
 
  #8  
Old 09-16-2006, 05:19 PM
Senior Member
Join Date: Jul 2005
Location:
Posts: 2,501
Default RE: High Flow cat problem......

Try to keep it as close to the cat as possible though, you'll get better readings.
 
  #9  
Old 09-16-2006, 06:38 PM
HCF Member
Join Date: Feb 2005
Location: Jersey
Posts: 7,168
Default RE: High Flow cat problem......

youre sure its a high flow cat not a test pipe?
 
  #10  
Old 09-17-2006, 11:55 AM
Thread Starter
Join Date: Aug 2006
Posts: 15
Default RE: High Flow cat problem......

ORIGINAL: Pete

youre sure its a high flow cat not a test pipe?
I pretty sure it is a high flow cat, from what I gathered everything was purchased from ebay from the header to the catback and including the highflow cat.
 

Thread Tools
Search this Thread
Quick Reply: High Flow cat problem......


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.