The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 4/9 Saab Owners' Convention Day Pass Raffle | 3/26 M Car Covers (by State of Nine)

The Saab Network Mailing List FAQ
Search:

Main Index
[ Prev by Date ] [ Next by Date ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Replacing O2 Sensor
Posted by Jeff Rininger (more from Jeff Rininger) on Sun, 12 Jan 2003 20:58:19
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

Well, okay, here is some general advice based on my experience with
classic 900 turbos, which may or may not apply to your 9000.  Check your
maintenance log: is the sensor due for a replacement?  Keep in mind that
the sensor can be damaged by an 'antifreeze shower' or excessive oiling,
so if you've blown a head gasket or had other major engine problems
recently the sensor may have died before it's time.  If you do have to
replace the sensor, invest in an oxygen sensor socket: even if you only
replace one O2 sensor the socket will pay for itself by eliminating hand
damage and hassle.  The O2 sensor is probably at least partially seized
and using crescent or open-end wrenches to remove the sensor is risky at
best.  Slather the threads of the new sensor with anti seize to help
prevent this next time.

Here are some diagnostic tricks.  Have A DVM?  Slap it across the sensor
with the engine warm and running and see if the sensor is working. 
Should hover around .5-1 volt.  If your car has a full throttle
enrichment switch, find it and use a rubber band or tie wrap to
temporarily close the switch and see if that clears up the problem. This
effectively takes the lambda system out of the loop.  If the rough
running doesn't clear up when you do this, you've got other problems...

- Jeff Rininger
==================
The Saab Network
http://www.saabnet.com/
saabno39sdcx6spamx782saabnet.com

Posts in this Thread:
StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

This is a moderated FAQ - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no Spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. TSN has been a moderated forum since 1988. For usage guidelines, see the TSN Mission and Purpose Page. Please remember that you are not anonymous
Your address is: 13.58.151.231 - Using Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) - Logged.
Site Members do not see red text instructions, green links, and bottom of the page banners.
Click here to see all the Site Membership Benefits!