O2 sensor placement
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Tourer
Joined: May 2009
Posts: 435
Likes: 1
From: St. George, Utah
O2 sensor placement
I purchased the autotune module to linkto my power commander V for my ultra. I want this to tune the bike for optimum performance with the setup I have. My question is were to place the wide band O2 sensors. My V&H twin slash pipes have sensor location down by my footboards. I have seen O2 sensors installed up by the pipe flang at the engine, about 4 or 6 inches back. I do not have the stock headers, I have the V&H true duals.
What is best? There is no documentation with the kits to guide me.
What is best? There is no documentation with the kits to guide me.
Stellar HDF Member
Joined: Sep 2007
Posts: 2,458
Likes: 671
From: Vancouver Island B.C.
The easiest thing would be mimic the 09 and older stock exhaust. You do want to make sure the bungs are short enough to let the sensor protrude into the pipe. The sensor you want to install is also longer than stock, so remember make sure you leave enough room for that.
Thread Starter
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Tourer
Joined: May 2009
Posts: 435
Likes: 1
From: St. George, Utah
The O2 sensors are larger than stock ,so I had to buy weld on bungs. That is why I ask now why people are putting the O2 sensors so close to the cylinder exhaust flang. If I put it at the location where the V&H bungs are, that is wrong size(stock size) and apparently at the south end of were a cat converter would have been. I do not have a cat converter now. I left the stock sensor in the pipe at that location discoonected from the ECM just to have the hole plugged. I intend to get a bolt to fit in it and remove that stock O2 sensor.
Stellar HDF Member
Joined: Sep 2007
Posts: 2,458
Likes: 671
From: Vancouver Island B.C.
The O2 sensors are larger than stock ,so I had to buy weld on bungs. That is why I ask now why people are putting the O2 sensors so close to the cylinder exhaust flang. If I put it at the location where the V&H bungs are, that is wrong size(stock size) and apparently at the south end of were a cat converter would have been. I do not have a cat converter now. I left the stock sensor in the pipe at that location discoonected from the ECM just to have the hole plugged. I intend to get a bolt to fit in it and remove that stock O2 sensor.
Thread Starter
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Tourer
Joined: May 2009
Posts: 435
Likes: 1
From: St. George, Utah
Thanks Lonewolf176. I need to just find the welder now andget it installed. I'm looking foward to having it in, since getting a good tune with PCV is hard to find with my cams. I want the on the fly monitoring and updates of the map.
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