Help Needed: Gutted Cat and O2 Sensor Placement
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Cruiser
Joined: Aug 2010
Posts: 173
Likes: 3
Help Needed: Gutted Cat and O2 Sensor Placement
After installing the pipe, I pulled the O2 sensors from where I had them "stuffed" for safe keeping.
I remember reading that the white plug went to the front pipe, and the black plug went to the rear pipe.
Before re-installing the O2 sensors, I wanted to confirm correct placement, so I consulted the Factory Service Manual.
The physical picture in the manual (Fig. 43-1) shows the black plug in the left of the shot, or rear position, and is for the rear pipe. The white plug is in the right of the shot, or the front position, and is for the front pipe.
My plugs are the opposite of the picture, black is in the front, white is in the back.
So to make sure I was ok, I checked out the wiring diagram (Fig B-18 (5 of 5):2011 Touring). The front (white plug) shows to have a pink/o wire, and the rear (black plug) a pink/grn wire.
So based on wire color alone, I placed the "back" white plug in the front pipe - having the pink/o wire, and the "front" black plug in the rear pipe - having the pink/grn wire.
The bike is running running rougher and mileage is down since the decat - are my O2 sensors in the wrong pipes?
I remember reading that the white plug went to the front pipe, and the black plug went to the rear pipe.
Before re-installing the O2 sensors, I wanted to confirm correct placement, so I consulted the Factory Service Manual.
The physical picture in the manual (Fig. 43-1) shows the black plug in the left of the shot, or rear position, and is for the rear pipe. The white plug is in the right of the shot, or the front position, and is for the front pipe.
My plugs are the opposite of the picture, black is in the front, white is in the back.
So to make sure I was ok, I checked out the wiring diagram (Fig B-18 (5 of 5):2011 Touring). The front (white plug) shows to have a pink/o wire, and the rear (black plug) a pink/grn wire.
So based on wire color alone, I placed the "back" white plug in the front pipe - having the pink/o wire, and the "front" black plug in the rear pipe - having the pink/grn wire.
The bike is running running rougher and mileage is down since the decat - are my O2 sensors in the wrong pipes?
Last edited by RCinLaveen; Apr 22, 2014 at 11:47 AM.
Club Member
Joined: Sep 2010
Posts: 1,694
Likes: 462
Isn't there a B and a W stamped into the head pipe next to the o2 bungs? I think they idiot proof it for the factory builders. If you compared wire color to the service manual schematic, you're probably right anyway.
Elite HDF Member
Joined: Oct 2010
Posts: 3,504
Likes: 12
From: DOWN SOUTH
When I did my pipe, I put both pipes on the floor side by side and switched em out one at a time. One is grey (front) and the other is black (rear). Here is a link that might help ya out brother. That will be 50 bucks, lmao..
https://www.hdforums.com/forum/touri...front-one.html
https://www.hdforums.com/forum/touri...front-one.html
Elite HDF Member
Joined: Oct 2010
Posts: 3,504
Likes: 12
From: DOWN SOUTH
What other mods have you made to your bike? I have a big sucker air cleaner, xied's, decatted pipe and slip ons, bike runs like a dream. I don't see how it could be running rough if the only thing you have done is gutted the pipe.
Grand HDF Member
Joined: Sep 2013
Posts: 3,820
Likes: 588
From: Michigan
After installing the pipe, I pulled the O2 sensors from where I had them "stuffed" for safe keeping.
I remember reading that the white plug went to the front pipe, and the black plug went to the rear pipe.
Before re-installing the O2 sensors, I wanted to confirm correct placement, so I consulted the Factory Service Manual.
The physical picture in the manual (Fig. 43-1) shows the black plug in the left of the shot, or rear position, and is for the rear pipe. The white plug is in the right of the shot, or the front position, and is for the front pipe.
My plugs are the opposite of the picture, black is in the front, white is in the back.
So to make sure I was ok, I checked out the wiring diagram (Fig B-18 (5 of 5):2011 Touring). The front (white plug) shows to have a pink/o wire, and the rear (black plug) a pink/grn wire.
So based on wire color alone, I placed the "back" white plug in the front pipe - having the pink/o wire, and the "front" black plug in the rear pipe - having the pink/grn wire.
The bike is running running rougher and mileage is down since the decat - are my O2 sensors in the wrong pipes?
I remember reading that the white plug went to the front pipe, and the black plug went to the rear pipe.
Before re-installing the O2 sensors, I wanted to confirm correct placement, so I consulted the Factory Service Manual.
The physical picture in the manual (Fig. 43-1) shows the black plug in the left of the shot, or rear position, and is for the rear pipe. The white plug is in the right of the shot, or the front position, and is for the front pipe.
My plugs are the opposite of the picture, black is in the front, white is in the back.
So to make sure I was ok, I checked out the wiring diagram (Fig B-18 (5 of 5):2011 Touring). The front (white plug) shows to have a pink/o wire, and the rear (black plug) a pink/grn wire.
So based on wire color alone, I placed the "back" white plug in the front pipe - having the pink/o wire, and the "front" black plug in the rear pipe - having the pink/grn wire.
The bike is running running rougher and mileage is down since the decat - are my O2 sensors in the wrong pipes?
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Tourer
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Joe Kucinski
Intermediate
Joined: Aug 2011
Posts: 29
Likes: 0
From: Omaha
definitely a tune. I run catless stock head pipe, slip ons, stage 2 breather, Reaper 574 cams and a power commander. What a difference it made when I gutted the cat. Winds up very fast. Had I done that first, I probably would not have done cams.
