Maxima Forums

4th Generation Maxima (1995-1999) Visit the 4th Generation forum to ask specific questions or find out more about the 4th Generation Maxima.

does the catalytic converter effect the o2 sensor readings?

Thread Tools
 
Search this Thread
 
Old 07-15-2006, 12:27 AM
  #1  
Senior Member
Thread Starter
 
acidspit86's Avatar
 
Join Date: Feb 2003
Posts: 509
does the catalytic converter effect the o2 sensor readings?
?
10char
acidspit86 is offline  
Reply
Old 07-15-2006, 04:49 AM
  #2  
Member who somehow became The President of The SE-L Club
iTrader: (19)
 
njmaxseltd's Avatar
 
Join Date: Jun 2001
Posts: 16,033
Only effects the 02's after the cat.
njmaxseltd is offline  
Reply
Old 07-15-2006, 12:54 PM
  #3  
Senior Member
Thread Starter
 
acidspit86's Avatar
 
Join Date: Feb 2003
Posts: 509
so does that mean using a test pipe with our cars will actually hurt performance?
acidspit86 is offline  
Reply
Old 07-15-2006, 01:12 PM
  #4  
Senior Member
iTrader: (8)
 
AlpineGt66's Avatar
 
Join Date: Apr 2006
Location: MN
Posts: 824
Originally Posted by acidspit86
so does that mean using a test pipe with our cars will actually hurt performance?
nope, the front two oxygen sensors control performance, the02 after or in the cat makes sure the cat is working. So just get an 02 sim to put a test pipe in for a cat since it will throw a cel if you dont put the sim in. Also the 3rd o2 sensor ONLY starts controling the engine, or hurting performance if the both the front y pipe o2 sensors fail. So to answer your question shotly, NO.
AlpineGt66 is offline  
Reply
Old 07-15-2006, 01:35 PM
  #5  
Senior Member
Thread Starter
 
acidspit86's Avatar
 
Join Date: Feb 2003
Posts: 509
Originally Posted by AlpineGt66
nope, the front two oxygen sensors control performance, the02 after or in the cat makes sure the cat is working. So just get an 02 sim to put a test pipe in for a cat since it will throw a cel if you dont put the sim in. Also the 3rd o2 sensor ONLY starts controling the engine, or hurting performance if the both the front y pipe o2 sensors fail. So to answer your question shotly, NO.

02 sim?

10char
acidspit86 is offline  
Reply
Old 07-15-2006, 05:15 PM
  #6  
Senior Member
iTrader: (8)
 
AlpineGt66's Avatar
 
Join Date: Apr 2006
Location: MN
Posts: 824
Originally Posted by acidspit86
02 sim?

10char
yea an oxygen simulator, you use it for the oxygen sensor that monitors the cat. if you remove the cat it will read that its not working so you will have a cel. The 02 sim gets rid of the cel. just do some reasearch, and if you dont believe me all ihave to say is, trial and error my friend
AlpineGt66 is offline  
Reply
Old 07-15-2006, 07:13 PM
  #7  
Supporting Maxima.org Member
 
nitromax's Avatar
 
Join Date: Apr 2004
Location: temple hills, md
Posts: 453
techically, a bad cat can affect the upstream o2 sensors, voltage changes in response to low flow, less o2 in signal to ecu causing adjustments to fuel ratio. this a bad example, but here goes, normally you wouldn't say your a$$ affects your mouth, until you get constipated, then you change what goes in your mouth so the flow can be corrected. one difference is the sensor can go bad if problem isn't corrected soon.
nitromax is offline  
Reply
Old 07-16-2006, 01:37 AM
  #8  
Wild for Width
iTrader: (23)
 
Fr33way™'s Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 6,520
^^^ Just wow.
Fr33way™ is offline  
Reply
Old 07-16-2006, 06:50 AM
  #9  
Member
iTrader: (1)
 
nad819's Avatar
 
Join Date: Jun 2005
Location: Kansas City
Posts: 59
had a question in a different thread with no reply, So I'll try this one:
Isn't it true that if the front 2 o2 sensors are working properly, the rear is only checked on ignition? Therefore an o2 simulator wouldn't provide any performance gains given that there is no CEL (4th gen with y pipe) Correct??
nad819 is offline  
Reply
Old 07-16-2006, 07:27 AM
  #10  
Senior Member
iTrader: (27)
 
MDeezy's Avatar
 
Join Date: Feb 2004
Location: Atlanta
Posts: 33,720
Originally Posted by Fr33way
^^^ Just wow.
I second that.
MDeezy is offline  
Reply
Old 07-16-2006, 12:38 PM
  #11  
Senior Member
Thread Starter
 
acidspit86's Avatar
 
Join Date: Feb 2003
Posts: 509
can someone pick out one on ebay that will work for me, i question how legit some of these are..
acidspit86 is offline  
Reply
Old 07-16-2006, 12:39 PM
  #12  
Senior Member
Thread Starter
 
acidspit86's Avatar
 
Join Date: Feb 2003
Posts: 509
these cars arent obdII either are they?
acidspit86 is offline  
Reply
Old 07-16-2006, 06:31 PM
  #13  
Supporting Maxima.org Member
 
nitromax's Avatar
 
Join Date: Apr 2004
Location: temple hills, md
Posts: 453
yeah, they are, the connector on the 95 is located on the passenger side just behind the front edge of the console.
nitromax is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Price of abs sensor 14$ or 140$?
bbsitum
4th Generation Maxima (1995-1999)
7
09-06-2019 07:31 PM
New to me 05'. Looking for recommendations.
sdotcarter
6th Generation Maxima (2004-2008)
2
09-02-2015 09:53 PM
2002 Nissan Maxima high flow cat help!
Justin Kroll
5th Generation Maxima (2000-2003)
7
09-02-2015 11:06 AM
Back to Subforum
4th Generation Maxima (1995-1999)
View Next Unread
Knock Sensor Questions Finally Answered




Advanced Search
Quick Reply: does the catalytic converter effect the o2 sensor readings?


Reply Closed Thread Share

All times are GMT -7. The time now is 07:13 PM.