Notices
Evo X Engine Management / Tuning Forums Discuss the major engine management systems.

Rear o2 sensor, which wire is what? *pic inside*

Thread Tools
 
Search this Thread
 
Old Sep 22, 2010 | 07:37 PM
  #1  
steven88's Avatar
Thread Starter
Evolving Member
iTrader: (9)
 
Joined: Sep 2006
Posts: 390
Likes: 0
From: California
Rear o2 sensor, which wire is what? *pic inside*



Can someone tell me which wire does what for this rear o2 sensor on my evo x? I don't have access to a service manual so any help would be greatly appreciated!

I just need to know which one is the 12v, ground, and o2 sensor signal wires
Reply
Old Sep 22, 2010 | 08:09 PM
  #2  
Golden's Avatar
Evolved Member
iTrader: (1)
 
Joined: Nov 2009
Posts: 1,456
Likes: 0
From: Omaha, NE
Multi-meter.

The 12 v one is the one with 12 volts. The one that ohms out to ground is ground, and the one left is your signal wire.
Reply
Old Sep 22, 2010 | 08:10 PM
  #3  
saytheb's Avatar
Evolving Member
iTrader: (2)
 
Joined: Mar 2009
Posts: 182
Likes: 2
From: Colorado
Originally Posted by Golden
Multi-meter.

The 12 v one is the one with 12 volts. The one that ohms out to ground is ground, and the one left is your signal wire.
Smart-*** response, but very very true..
Reply
Old Sep 22, 2010 | 11:59 PM
  #4  
steven88's Avatar
Thread Starter
Evolving Member
iTrader: (9)
 
Joined: Sep 2006
Posts: 390
Likes: 0
From: California
haha, not a smart *** response at all...its totally true but unfortunately i dont have a multimeter, and dont know how to use one either....I'm just wondering if someone that has access to a service manual or knows what wire does what....
Reply
Old Sep 23, 2010 | 07:48 AM
  #5  
derekste's Avatar
Evolved Member
iTrader: (9)
 
Joined: Nov 2006
Posts: 818
Likes: 0
From: Aurora, IL
for the stock sensor (denso), it should be:

blue: signal+
white: signal-
black: heater
black: heater
(heater wires are not polarity dependent)
Reply
Old Sep 28, 2010 | 03:02 AM
  #6  
steven88's Avatar
Thread Starter
Evolving Member
iTrader: (9)
 
Joined: Sep 2006
Posts: 390
Likes: 0
From: California
wait, so the white wire is sensor ground?
Reply
Old Sep 28, 2010 | 06:57 AM
  #7  
derekste's Avatar
Evolved Member
iTrader: (9)
 
Joined: Nov 2006
Posts: 818
Likes: 0
From: Aurora, IL
Originally Posted by steven88
wait, so the white wire is sensor ground?
yes
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mRVRsport
Outlander Sport
26
Nov 2, 2017 09:53 AM
importmachine
For Sale - Wheels / Tires
7
Apr 10, 2013 08:03 PM
EVO.C
For Sale/WTB - Engine / Drivetrain / Power
10
Sep 26, 2012 07:13 PM
ExtremeDSM
Other Cars - For Sale - Wanting To Buy (WTB) Or Trade (WTT)
101
Jun 15, 2012 03:03 PM
Tanman1986
Evo General
8
Jul 26, 2010 10:35 AM




All times are GMT -7. The time now is 09:43 AM.