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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Electrics: Starter, Ignition, Coil, Spark Plugs/Cables, ECM, "TPS Reset" » Archive through August 27, 2007 » Expected ECM behavior with unplugged O2 sensor? « Previous Next »

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Paolo
Posted on Tuesday, August 22, 2006 - 02:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Whats the expected ECM behavior if I unplug
the O2 sensor?

Does the ECM return immediately to open loop
mode, if it gets bad data (error) from a
sensor in closed loop mode?

The purpose of this is to make the ECM use
my Directlink-tuned maps all the time, instead
of getting input from sensors.

We don't have much variation in heights here
where I live, so the O2 sensor isn't really
necessary for me... : )
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Al_lighton
Posted on Tuesday, August 22, 2006 - 09:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I believe it will just run on the open loop maps. You'll want to reset your AFV to 100. With the O2 sensor disconnected, it can not re-learn a new AFV.
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Paolo
Posted on Wednesday, August 23, 2006 - 01:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks, mate! : )
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