O2 Censor - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 07-16-2004, 05:08 PM
n00b
 
Join Date: Jul 2004
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
San&Mar is an unknown quantity at this point
(Thread Starter)
Just bought a 93 325is from a friend. Took it to get smogged and it didn't pass. Just got a new 02 censor and new catalitic converters put in as well and the "Check Engine" light keeps coming on and the code on smog keeps saying it's the O2 censor. My mechanic works on nothing but BMW, Mercedes and Porche's. He's about to lose the last of his hair trying to figure out what's going wrong. Anybody been there or done that? used
San&Mar is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 07-16-2004, 09:54 PM
5th Gear Member
 
BMWJNKY's Avatar
 
Join Date: Oct 2003
Location: Elk Grove, CA
Posts: 1,175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute
Send a message via AIM to BMWJNKY Send a message via Yahoo to BMWJNKY
What is the exact code for the O2 sensor? With out the exact description of the code it is hard to tell what could be the cause. There are numerous codes that are O2 sensor related but don't meen the O2 sensor is bad.
BMWJNKY is offline  
#3 (permalink) Old 07-16-2004, 10:50 PM
n00b
 
Join Date: Jul 2004
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
San&Mar is an unknown quantity at this point
(Thread Starter)
Where on the Smog Check Vehicle Inspection Report do I get the O2 censor
code from? %O2 column?
San&Mar is offline  
#4 (permalink) Old 07-16-2004, 11:13 PM
5th Gear Member
 
BMWJNKY's Avatar
 
Join Date: Oct 2003
Location: Elk Grove, CA
Posts: 1,175
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute BMWJNKY has a reputation beyond repute
Send a message via AIM to BMWJNKY Send a message via Yahoo to BMWJNKY
You will have to ask the mechanic that pulled the code for the exact description if it isn't on the workorder. The paper that has O2% and other percentages on it is only what exhaust gas percentages were measured comming out of your car.
BMWJNKY is offline  
#5 (permalink) Old 07-16-2004, 11:42 PM
You Can Has A Custom Title!!
 
Join Date: Dec 2002
Location: Houston
Posts: 2,053
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
MrM3 is an unknown quantity at this point
Send a message via AIM to MrM3
->moving to E36
MrM3 is offline  
#6 (permalink) Old 07-17-2004, 10:02 PM
n00b
 
NID2's Avatar
 
Join Date: Jun 2004
Location: sunny Florida
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
NID2 is an unknown quantity at this point
What test to perform to make sure:
The first is a carbon dioxide test performed on the cooling system will tell you if C02 is going inside your coolant.
A leakdown test will allow you to check each cylinder to look for pressure loss inside the cylinder. Failing the test could also be seepage past a bad valve guide, piston ring...
Head Gasket Testing Kit


The best method is to have a service shop, or a friend who owns a block test kit test your system for a compression leak to your cooling system. I heard that some test kits can be purchased from auto stores. This is a test unit and test fluid that changes color with the presence of exhaust gas in the engine coolant. Another test that should be completed is a coolant system pressure test Test your system for leaks with nine to twelve Psi pressure. It should not show any appreciable pressure loss within 5 minutes.

Sometimes it's worth it just to have a pro shop diagnose the problem, even if you are planning to do the repair yourself.
NID2 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome