Adding O2 senors
#1
Adding O2 senors
Ok, I have did searches in these forums, as well as others, and I have yet to find an answer to this.
I have a 2006 FLHX-I, for those of us that prefer the names, it's a fuel injected 2006 Street Glide.
A friend of mine is now doing tts tuning, which involves removing any piggy back programmers (power commander, ect...) and he then rewrites my ECM. I was sorta skeptical at first, but then let him do it. WOW! over 20% more hp and torque over what the PC3 and a dyno tune got me.
Anyhow, this is thread is not about what he did, but rather what I want.
My bike came without O2 sensors. If I had O2 sensors, he says that the ECM would constantly adjust to air temp, humidity, and other weather/atmospheric conditions; but since I don't have O2 sensors, I am still only running the one map or tune.
SO...how do I got about adding O2 sensors? Is it as easy as getting an ECM from a bike with O2 sensors that will still plug into my wiring harness? I do believe they had some '06 SG fuel injected with O2 sensors in California, no?
Any help is most appreciated.
I have a 2006 FLHX-I, for those of us that prefer the names, it's a fuel injected 2006 Street Glide.
A friend of mine is now doing tts tuning, which involves removing any piggy back programmers (power commander, ect...) and he then rewrites my ECM. I was sorta skeptical at first, but then let him do it. WOW! over 20% more hp and torque over what the PC3 and a dyno tune got me.
Anyhow, this is thread is not about what he did, but rather what I want.
My bike came without O2 sensors. If I had O2 sensors, he says that the ECM would constantly adjust to air temp, humidity, and other weather/atmospheric conditions; but since I don't have O2 sensors, I am still only running the one map or tune.
SO...how do I got about adding O2 sensors? Is it as easy as getting an ECM from a bike with O2 sensors that will still plug into my wiring harness? I do believe they had some '06 SG fuel injected with O2 sensors in California, no?
Any help is most appreciated.
#2
with o2 sensors an ecm can alter fuel delivery ( +/- ) to match air density ( which is affected by temp, alt. humidity etc.) the o2 sensor will tell the ecm in realtime, constantly, if the mixture is rich or lean
physically it's swapping to a 2007/08 header.....modding a 2009+ header or aftermarket header...or having an muffler shop weld bungs into place.
I "think" you would then need a replacement ECM such as the thundermax- read up on that.
o2 sensors come in 2 sizes, and 2 wire vs 3 wire- so check you have the right stuff
Mike
physically it's swapping to a 2007/08 header.....modding a 2009+ header or aftermarket header...or having an muffler shop weld bungs into place.
I "think" you would then need a replacement ECM such as the thundermax- read up on that.
o2 sensors come in 2 sizes, and 2 wire vs 3 wire- so check you have the right stuff
Mike
Last edited by mkguitar; 02-01-2016 at 02:42 PM.
#3
I have no idea how you add O2 sensors to an ECM that didn't use them. I'm sure that taking a newer ECU is fraught with problems. Probably aftermarket.
That said, if the stock ECU is running open loop then either whoever tuned the PC3 did a shitty job, or the guy who tuned the TTS is telling stories. 20% is pretty fantastic assuming all other things are equal.
That said, if the stock ECU is running open loop then either whoever tuned the PC3 did a shitty job, or the guy who tuned the TTS is telling stories. 20% is pretty fantastic assuming all other things are equal.
#4
Total crap job on dyno'ing PC3....i can feel the extra power, and its just just a little bit. My riding buddies with the stock 103's arent waiting for me as much, and that 1200 sporty doesnt leave me behind anymore either. LOL
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