obd1 b18b how many 02 sensors?

Thread Tools
 
Search this Thread
 
Old May 23, 2003 | 05:51 AM
  #1  
Audipwr1's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2001
Posts: 1,944
Likes: 0
From: ny/me, usa
Default obd1 b18b how many 02 sensors?

how many 02 sensors do i need to run 1 or 2?
where is a cheap place to get these? how many wires are they?
Reply
Old May 23, 2003 | 06:44 AM
  #2  
dingusjt's Avatar
Member
 
Joined: Apr 2002
Posts: 1,888
Likes: 0
From: Long Beach, CA
Default Re: obd1 b18b how many 02 sensors? (Audipwr1)

i could be completely mistaken but i think obd1 only has 1 02 sensor, however i had a 98 GSR engine in my EF and i was running 2 02 sensors into the cat...
Reply
Old May 23, 2003 | 07:09 AM
  #3  
Hondasaurs's Avatar
Member
 
Joined: Oct 2001
Posts: 1,605
Likes: 0
From: Upstate, NY
Default Re: obd1 b18b how many 02 sensors? (dingusjt)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dingusjt &raquo;</TD></TR><TR><TD CLASS="quote">i could be completely mistaken but i think obd1 only has 1 02 sensor, however i had a 98 GSR engine in my EF and i was running 2 02 sensors into the cat...</TD></TR></TABLE>

Correct. My B17A1 only has 1 O2 sensor. This was the Same for a B18C, D16Z6, swap and an H22 swap I've just done. All of these engines were OBD1.
Reply
Old May 23, 2003 | 05:09 PM
  #4  
Audipwr1's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2001
Posts: 1,944
Likes: 0
From: ny/me, usa
Default Re: obd1 b18b how many 02 sensors? (B17A Hatch)

perfect thanks
Reply
Old May 23, 2003 | 06:45 PM
  #5  
Malgerus's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Feb 2002
Posts: 5,723
Likes: 1
From: BC
Default Re: obd1 b18b how many 02 sensors? (Audipwr1)

1 sensor, y0. I have also heard that OBD-I + OBD-II sensors are the same.
Reply
Old May 25, 2003 | 09:31 AM
  #6  
Audipwr1's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2001
Posts: 1,944
Likes: 0
From: ny/me, usa
Default Re: obd1 b18b how many 02 sensors? (Mr. S)

are they 3 wire or 4 wire?
Reply
Old May 25, 2003 | 01:05 PM
  #7  
NCchris's Avatar
Junior Member
 
Joined: Nov 2001
Posts: 614
Likes: 0
From: Asheboro, NC, 27203
Default Re: obd1 b18b how many 02 sensors? (Audipwr1)

If you use the pre obd (one wire) sensor, you need to weld in a bung closer to the motor so it will stay hot enough to read correctly. The obd1 B18b's o2 is in the front cat flange. I welded in a bung just below the cast iron header in one od the downpipes and it works fine.
HTH
chris
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JohnnyEF
Honda CRX / EF Civic (1988 - 1991)
6
Dec 4, 2011 03:21 PM
cmdeoro
Honda CRX / EF Civic (1988 - 1991)
3
Jun 22, 2009 06:22 PM
dougshatch
Honda CRX / EF Civic (1988 - 1991)
7
Jun 11, 2007 06:38 PM
scdarksol
Honda CRX / EF Civic (1988 - 1991)
14
Nov 16, 2003 06:26 PM




All times are GMT -8. The time now is 05:55 PM.