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

Knock Sensor triggering CEL question

Thread Tools
 
Search this Thread
 
Old 01-27-2012, 11:58 PM
  #1  
Senior Member
Thread Starter
 
2brosgixxer's Avatar
 
Join Date: Oct 2011
Location: Maine
Posts: 1,528
Knock Sensor triggering CEL question

Has anyone else ever had their KS trigger the CEL to come on with no other codes? A few months ago, I got the KS code WITH the rear O2 code, replaced the O2 and BOTH codes went away. Well, my CEL came on yesterday and the only code I got was for the KS. I pulled the KS out and heres what I found...a big crack. Threw a new one in and no codes now.


Main reason for this thread is, I have seen a lot of posts saying the KS alone will not trigger the CEL...which mine did. Do I have a weird car LOL? Just curious if anyone else has had this happen to them as well. Hoping to figure out if the KS being a ghost code only is a fact or myth.
2brosgixxer is offline  
Old 01-28-2012, 10:37 AM
  #2  
Got Retrofit?
iTrader: (34)
 
ChrisMan287's Avatar
 
Join Date: Jul 2008
Location: NY
Posts: 14,802
Mine has before. It can happen.
ChrisMan287 is offline  
Old 01-28-2012, 08:48 PM
  #3  
Member
iTrader: (1)
 
BIG D MAXX's Avatar
 
Join Date: Sep 2008
Location: Dallas Tx
Posts: 107
Mine has also thrown the KS code only.... So i think it does happen not sure who said that it didnt
BIG D MAXX is offline  
Old 01-28-2012, 08:58 PM
  #4  
Senior Member
Thread Starter
 
2brosgixxer's Avatar
 
Join Date: Oct 2011
Location: Maine
Posts: 1,528
Originally Posted by BIG D MAXX
Mine has also thrown the KS code only.... So i think it does happen not sure who said that it didnt
Man, its all over the org people saying it will not trigger the cel. That's the main objective of this thread...to try to figure out the facts and maybe why it triggers it for some people but not for others and maybe set things straight.
2brosgixxer is offline  
Old 01-29-2012, 05:10 AM
  #5  
Member
 
Thaboywonder6588's Avatar
 
Join Date: Jun 2011
Location: Drexel Hill PA
Posts: 217
Since We Are On The Topic, I Just Had My Knock Sensor Replaced For A Dirt Cheap Price And My CEL Is Still On... Hooked It Up To A Code Reader And Bank 1 Sensor 1 Came Up... Where Is This Sensor Located? Pictures Would Be Lovely
Thaboywonder6588 is offline  
Old 01-29-2012, 05:57 AM
  #6  
Senior Member
Thread Starter
 
2brosgixxer's Avatar
 
Join Date: Oct 2011
Location: Maine
Posts: 1,528
[QUOTE=Thaboywonder6588;8345045]Since We Are On The Topic, I Just Had My Knock Sensor Replaced For A Dirt Cheap Price And My CEL Is Still On... Hooked It Up To A Code Reader And Bank 1 Sensor 1 Came Up... Where Is This Sensor

Edit: I believe b1 sensor 1 is the front passenger side. here Is a link http://www.nissanhelp.com/diy/maxima...tification.htm
Chances are that your o2 sensor triggered the knock sensor code....was your ks actually bad (cracked or anything)? When my bank 1 sensor 2 o2 was bad, I got the ks code but once I fixed the o2, it went away for about 6 months until the other day and the ks was fine when that code came up with the o2 sensor one. Then the other day I got just the ks code and it was obviously bad since It was cracked.

Last edited by 2brosgixxer; 01-29-2012 at 06:29 AM.
2brosgixxer is offline  
Old 01-29-2012, 06:03 AM
  #7  
Senior Member
iTrader: (5)
 
Trini Boom's Avatar
 
Join Date: May 2009
Location: Brooklyn, NY
Posts: 2,406
Very interesting....unless you have some very bad knocking for the light to come on. The FSM even states that the light will not come on.
Trini Boom is offline  
Old 01-29-2012, 06:28 AM
  #8  
Senior Member
Thread Starter
 
2brosgixxer's Avatar
 
Join Date: Oct 2011
Location: Maine
Posts: 1,528
Originally Posted by Trini Boom
Very interesting....unless you have some very bad knocking for the light to come on. The FSM even states that the light will not come on.
Nope, no knocking that I could hear but I run premium...just the obvious big crack. Not mpg loss, no hesitation so I never would have got it without the cel coming on. Strange, I know.
2brosgixxer is offline  
Old 01-29-2012, 09:28 AM
  #9  
Member
 
Thaboywonder6588's Avatar
 
Join Date: Jun 2011
Location: Drexel Hill PA
Posts: 217
[QUOTE=2brosgixxer;8345061]
Originally Posted by Thaboywonder6588
Since We Are On The Topic, I Just Had My Knock Sensor Replaced For A Dirt Cheap Price And My CEL Is Still On... Hooked It Up To A Code Reader And Bank 1 Sensor 1 Came Up... Where Is This Sensor

Edit: I believe b1 sensor 1 is the front passenger side. here Is a link http://www.nissanhelp.com/diy/maxima...tification.htm
Chances are that your o2 sensor triggered the knock sensor code....was your ks actually bad (cracked or anything)? When my bank 1 sensor 2 o2 was bad, I got the ks code but once I fixed the o2, it went away for about 6 months until the other day and the ks was fine when that code came up with the o2 sensor one. Then the other day I got just the ks code and it was obviously bad since It was cracked.
Put It This Way: When I Was Fidgeting With It After It Was Taken Out, It Broke Into Pieces
Thaboywonder6588 is offline  
Old 01-29-2012, 10:49 AM
  #10  
Senior Member
iTrader: (6)
 
Fauken's Avatar
 
Join Date: Feb 2011
Location: IE
Posts: 3,926
My KS did not trigger a CEL but it was cracked in 3 different places. So I don't think the crack would make any difference in turning on the CEL, but like someone stated maybe some bad knocking was happening.
Fauken is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mvm062
Infiniti I30/I35
3
11-30-2020 09:00 AM
lux97Max
4th Generation Classifieds (1995-1999)
1
09-04-2015 05:42 PM
Johnny9595
4th Generation Maxima (1995-1999)
5
09-03-2015 05:18 AM
sdotcarter
6th Generation Maxima (2004-2008)
2
09-02-2015 09:53 PM
A32goldylocks
4th Generation Maxima (1995-1999)
2
09-02-2015 06:39 AM



Quick Reply: Knock Sensor triggering CEL question



All times are GMT -7. The time now is 06:45 PM.