O2 sensor position
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Joined: May 2012
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From: Western NC
O2 sensor position
I have a 2012 ultra classic 103. Recently had Rush 4" with 2 1/2 baffles, PCV, Screaming Eagle AC and catless head pipes put on. Had it dyno tuned at HD dealership. I am going to have to remove the PCV because it is going in and out. Bike runs real good and then not so good. When the dealer tuned it he removed the O2 sensors. I am going to put the stock air filter and reinstall the O2 sensors while the PCV is sent back for repairs. Question is which O2 sensor goes where, there is a black and gray connectors. Which goes to the front and which goes to the rear. Thanks
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Joined: Dec 2008
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From: Ohio
I have a 2012 ultra classic 103. Recently had Rush 4" with 2 1/2 baffles, PCV, Screaming Eagle AC and catless head pipes put on. Had it dyno tuned at HD dealership. I am going to have to remove the PCV because it is going in and out. Bike runs real good and then not so good. When the dealer tuned it he removed the O2 sensors. I am going to put the stock air filter and reinstall the O2 sensors while the PCV is sent back for repairs. Question is which O2 sensor goes where, there is a black and gray connectors. Which goes to the front and which goes to the rear. Thanks
gray is front
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