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Buell Forum » Old School Buell » Archive through May 16, 2013 » 02 sensor disconnect Force exhaust ecm spy « Previous Next »

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Serialk
Posted on Saturday, May 11, 2013 - 01:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Okay got the bike going. Force pipe and big fn filter. race ecm. bike would not idle at all. i had to keep on the throttle to get it up to 140degrees to set my TPS. took it for a quick ride and rode horrible under 3k....

Want to know if i did this right.
-My pipe has no 02 sensor. so this is what i did and apparently its working for now

went into
ECM-Config
-clicked on idle closed loop enabled
-clicked on open loop enabled

Over on Activate I put in the value of min .RPM for 02 to activate from 600 to 6000.
I did this so the ECM wont be looking for O2 input.
I also changed the value of min TP for 02 to activate from 0-100.

after i did this I took the bike for a ride and it idles and is smooth through the rpm range

did this shut off the 02 input?

or did i do a no no. any help is appreciated...oh and yes the force is loud as hell
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X1_rider
Posted on Saturday, May 11, 2013 - 06:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I love my Force as well but I found out it doesn't play well with closed loop/O2 sensor input. It would lean itself out like crazy until the spark plugs were white as snow.
Here is how I did it, it worked really well.
Using ECM Spy I turned off the O2 sensor input by checking off the box in the following pic.

After the first ride, I got a check engine light due to the O2 sensor being turned off, so I turned off the O2 sensor DTC function by checking off the boxes in the following picture.


I'm running off the tuning map with no closed loop function but the bike has been running great, if anything it may be slightly rich (I'll take slightly rich before extremely lean).
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Buellistic
Posted on Saturday, May 11, 2013 - 09:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If your REAR HEADER EXHAUST GASKET is BAD or going BAD it will cause the O2 sensor to give inaccurate readings or give an O2 Code ...

EXHAUST SYSTEM Class 101, just PM me for a copy ...
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Serialk
Posted on Saturday, May 11, 2013 - 10:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks. That's exactly what I was looking for!
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