o2 sensor wire colors and ecu pinout - Nissan 240SX Forums
SR20DE & DET Tech Section for all things SR. (Including the N/A SR20DE)

 
LinkBack Thread Tools
#1 Old 04-27-2008, 05:13 PM
 
4x4le's Avatar
 
Join Date: Dec 2007
Location: Manchester Tn
Age: 28
Posts: 3,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 164036199
4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy
Points: 1,640,369,272, Level: 100
Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100
Activity: 7%
Activity: 7% Activity: 7% Activity: 7%
(Thread Starter)
o2 sensor wire colors and ecu pinout

Well I think I have the wires colors figured out on the o2 sensor but I cant figure out which ones I need to hook up to the ecu. Im not getting any signal to the ecu from the o2 sensor and it has probably been that way since the swap was done. Anyways im wanting to hook it up but the pinout on the ecu is #19 o2 sensor input however I heard that the heater is also controlled from the ecu and I cant find the pinout for it. Is it called something that im just not associating with a sensor heater? I wouldnt think it would be that big of a deal considering it hasnt been hooked up this long and it will eventually get warm anyways, plus that part might actually be working and its just not reading because it isnt hooked up to the ecu. If anyone can help please do.
4x4le is offline  
Sponsored Links
Advertisement
 
#2 Old 04-27-2008, 08:08 PM
 
4x4le's Avatar
 
Join Date: Dec 2007
Location: Manchester Tn
Age: 28
Posts: 3,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 164036199
4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy
Points: 1,640,369,272, Level: 100
Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100
Activity: 7%
Activity: 7% Activity: 7% Activity: 7%
(Thread Starter)
Humm, Where I looked it up on the net I believe the person that described the wires was wrong or something.
The wires I have are red, white, and black. hey, does anyone know which wire is for which? Coming off the 02 im having trouble finding out which wire does what and I dont want to hook it up wrong. I think the white is the heater + because I was getting a + signal of 12v when running, the other 2 wires are both getting a ground signal weather its running or not (which is why mine isnt working). I know 1 of them is supposed to be a ground all the time and that is cool, but the other one Im going to have to snip and run to the ecu. I have exhausted myself trying to search and look in my fsm but I cant come up with anything. I have a white wire, white is the heater im almost 100% and I have black and red. My guess would be red but if anyone can confirm I would be thankful! Im waiting for the car to cool off to try again (kinda close to the header and all)
4x4le is offline  
#3 Old 04-27-2008, 10:24 PM
 
Joel 180's Avatar
 
Join Date: Aug 2003
Location: Melbourne
Posts: 6,759
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 92045459
Joel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthy
Points: 920,469,570, Level: 100
Points: 920,469,570, Level: 100 Points: 920,469,570, Level: 100 Points: 920,469,570, Level: 100
Activity: 4%
Activity: 4% Activity: 4% Activity: 4%
if its a factory o2 sensor then lambda is white, +12v is red and black is ground.



Black hook up to a ground.
Red connects to pin 102 - EAI control solenoid output - Orange Black
White connects to pin 19 - Lambda - White

Pin 102 is connected to the ignition switch so its switched +12v with IGN

edit: youll need this too


Last edited by Joel 180; 04-27-2008 at 11:00 PM.
Joel 180 is offline  
#4 Old 04-27-2008, 10:43 PM
 
4x4le's Avatar
 
Join Date: Dec 2007
Location: Manchester Tn
Age: 28
Posts: 3,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 164036199
4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy
Points: 1,640,369,272, Level: 100
Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100
Activity: 7%
Activity: 7% Activity: 7% Activity: 7%
(Thread Starter)
its odd that im getting +12v from the clip that goes to the o2 sensor that will hook up to the white wire. If I were to unplug the clip i would think that the only difference would be that the heater wouldnt be hooked up, right? I think I might just hook the white wire up for tonigt, right to the ecu and have the plug unclipped. Ill try to get my ecu consulted to see if that hooked up the o2 and if it did Ill run the other wires properly. Hopefully there was no damage done to the 02 sensor from it being supplied with 12v where its supposed to be a signal wire.

Just another reason no one should trust jgy customs. Their wiring sucks.
4x4le is offline  
#5 Old 04-27-2008, 11:09 PM
 
Joel 180's Avatar
 
Join Date: Aug 2003
Location: Melbourne
Posts: 6,759
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 92045459
Joel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthyJoel 180 The posts made by this user are trust worthy
Points: 920,469,570, Level: 100
Points: 920,469,570, Level: 100 Points: 920,469,570, Level: 100 Points: 920,469,570, Level: 100
Activity: 4%
Activity: 4% Activity: 4% Activity: 4%
yeah maybe your loom is ghettoed.

Do a multimeter continuity test from pin 19 to the white plug wire. Unplug the ecu first though.

It is an s13 sr right? cos s14 o2 pins is different (29 and 115) and uses a 2 wire sensor
Joel 180 is offline  
#6 Old 04-29-2008, 11:54 PM
 
4x4le's Avatar
 
Join Date: Dec 2007
Location: Manchester Tn
Age: 28
Posts: 3,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rep Power: 164036199
4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy4x4le The posts made by this user are trust worthy
Points: 1,640,369,272, Level: 100
Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100 Points: 1,640,369,272, Level: 100
Activity: 7%
Activity: 7% Activity: 7% Activity: 7%
(Thread Starter)
Yea, its an s13. I think with your help I have it figured out although Ive yet to do what I think need done and hook up the consult to see what it says then.
Thanks for helping though. I seem to never get help when I ask.....
4x4le is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Nissan 240SX Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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



Posting Rules  
You may not post new threads
You may 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