Upgrading help
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Stage III
Joined: Oct 2015
Posts: 3
Likes: 0
From: Fontana, California
Upgrading help
Hey anybody care to help me out. Can I install custom 2 into 1 exhaust with no O2 sensors on a 2007 screaming eagle all stock that has O2 sensors. Do I add 02 brings. Or unplug sensors. Do I need to buy anything. Please help rookie
Outstanding HDF Member
Joined: Sep 2014
Posts: 2,717
Likes: 273
From: Minnesota
If you remove the O2 senors you do need to add an O2 sensor eliminator to the wiring jack,, it's fool's the ECM into believing the sensors are still there and sending the right signal.
https://www.google.com/search?q=Harl...+sensor+bypass
https://www.google.com/search?q=Harl...+sensor+bypass
A caution here if you are eliminating the O2's you will only operate in open loop. This eliminates the ECM ability to control any changes automatically. it will only use the map installed & not be able to sense rich or lean conditions & correct them if within the O2's range.
Outstanding HDF Member
Joined: May 2013
Posts: 3,427
Likes: 164
From: Home
I changed out my '05 stock ECM (open loop) out for a closed loop system.
Changes in temperature and elevation will change the tuning which effects the overall performance and lifespan of the engine.
Changes in temperature and elevation will change the tuning which effects the overall performance and lifespan of the engine.
Take the headers to a muffler shop (one that knows motorcycles), and have the sensor bungs welded in. Or get headers that already have them. You could also install a power commander, or other tuner that doesn't use the O2 sensors.
Seasoned HDF Member
Joined: Feb 2012
Posts: 13,456
Likes: 10,452
From: Sunshine State
+1...forget about the cheat, you'll regret it.
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