2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

changing O2 sensor?

Thread Tools
 
Search this Thread
 
Old Dec 18, 2002 | 09:00 AM
  #1  
Spraintz's Avatar
Thread Starter
Edmond Dantes
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2002
Posts: 1,930
Likes: 0
From: Dallas, Texas
Question changing O2 sensor?

I hate asking about something so cheesy and couldn't really find anything in a search.

anybody have any tips on the bes/easiest way to remove the O2 sensor?

i like to believe that i am mechanically inclined and i have done tons on my rx7 but never an O2 sensor.

BTW, its a 89 NA

Thanks
Reply
Old Dec 18, 2002 | 09:16 AM
  #2  
sunshine's Avatar
Rotary Freak
Tenured Member 20 Years
iTrader: (3)
 
Joined: Feb 2002
Posts: 1,697
Likes: 0
From: MN
Go to a parts store and get a Bosch O2 sensor. Remove the one in the car now with an open ended wrench (I dont remeber the size). Cut the connector off of the old O2 sensor...BUT BE SURE TO leave enough wire for you to be able to splice the connector onto the new Bosch O2 sensor. Install, and connect.
Ur done!
Reply
Old Dec 18, 2002 | 09:37 AM
  #3  
Spraintz's Avatar
Thread Starter
Edmond Dantes
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2002
Posts: 1,930
Likes: 0
From: Dallas, Texas
thanks
already knew about splicing in a generic one, i was jst hoping there was an easy way to get down in there. doesn't seem like there's really any room.

think its easier from top or bottom?
Reply
Old Dec 18, 2002 | 09:40 AM
  #4  
Samps's Avatar
~~~~~~~~~~~~~~~~~~~~~~~
Tenured Member 15 Years
 
Joined: May 2001
Posts: 1,594
Likes: 0
From: Pittsburgh, PA
I would suggest spraying it with lots of penetrating oil before hand. Maybe let the oil soak in for a few hours and spray some on every now and then. Those suckers are usually frozen in there prestty good. they make special sockets to remove the sensor without cutting the wire, but if you're replacing it then just cut the wire.
Reply
Old Dec 18, 2002 | 09:42 AM
  #5  
Samps's Avatar
~~~~~~~~~~~~~~~~~~~~~~~
Tenured Member 15 Years
 
Joined: May 2001
Posts: 1,594
Likes: 0
From: Pittsburgh, PA
Easier from the top with the stock manifold. Once you got the header you must go under.
Reply
Old Dec 18, 2002 | 09:43 AM
  #6  
Turbonut's Avatar
Eats, Sleeps, Dreams Rotary
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,993
Likes: 68
From: NJ
Best to use an O2 socket. It's a deep socket with a slit in the side for the wire. I attached a universal to a long extension. A lot of umph and it will break loose. I found it easier to break loose when car warm. Line everything up when cool, the just slide it on when warm. I broke it loose then removed after cool down.
Reply
Old Dec 18, 2002 | 09:44 AM
  #7  
Turbonut's Avatar
Eats, Sleeps, Dreams Rotary
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,993
Likes: 68
From: NJ
Sorry, post for a TII, you have a N/A.
Reply
Old Dec 18, 2002 | 11:09 AM
  #8  
pmr2000's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 419
Likes: 0
From: NYC
I just replaced mine, bought the 02 socket and still could not get it loose without soaking it in WD-40 for about a half hour. Bought the Bosch and needed to splice it, connector did not match nor was it long enough even thought the original looking NGK was on.

Make sure you use the heat shrink stuff that can handle the engine tempurature on the spice.
Reply
Old Dec 18, 2002 | 11:34 AM
  #9  
Spraintz's Avatar
Thread Starter
Edmond Dantes
Tenured Member 10 Years
iTrader: (1)
 
Joined: Jun 2002
Posts: 1,930
Likes: 0
From: Dallas, Texas
awesome, so there IS a special socket

i will definately get one of those babies. all my exhaust component bolts came of just fine with some WD-40 soakin.

thanks a ton fellers
Reply
Old Dec 18, 2002 | 12:19 PM
  #10  
pmr2000's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 419
Likes: 0
From: NYC
I just replaced mine, bought the 02 socket and still could not get it loose without soaking it in WD-40 for about a half hour. Bought the Bosch and needed to splice it, connector did not match nor was it long enough even thought the original looking NGK was on.

Make sure you use the heat shrink stuff that can handle the engine tempurature on the spice.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM
The1Sun
New Member RX-7 Technical
5
Sep 15, 2015 04:45 PM




All times are GMT -5. The time now is 11:50 AM.