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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Exhaust: Headers, Muffler, Gaskets, Supports » Archive through April 30, 2008 » O2 Sensor location? « Previous Next »

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Bad_karma
Posted on Tuesday, January 08, 2008 - 02:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

For those that can shed some light. Why isn't the O2 sensor in the collector?
Thanks
Joe
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Blake
Posted on Tuesday, January 08, 2008 - 03:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Possibly too close to tail pipe and effects of fresh air reversion causing inaccurate readings. My question is why not a sensor on each header runner pipe?
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Bombardier
Posted on Tuesday, January 08, 2008 - 05:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Now your asking the questions I like to hear!

If there is no reversion how about a heated sensor.

It will be out of the limelight and wont stuff up that clean look at the front of the bike.

The required ground and heater wires can be run to the ignition circuit in the existing heat covered loom with the sensor wire continuing to the sensor pick up.
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Bad_karma
Posted on Wednesday, January 09, 2008 - 12:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I can see that one in each head pipe would be the best. My guess is some bean counter has something to say about the extra parts, machining and ECM upgrades. Just a guess.
Joe
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Blake
Posted on Wednesday, January 09, 2008 - 03:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

As long as neither cylinder develops an intake air leak, the single sensor on the rear works great. I don't think it was a bean counter decision, at least not from the start. Though I can sure see how it would be a major job to rework the ECM programming for two sensors versus one.
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Bombardier
Posted on Wednesday, January 09, 2008 - 11:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Map or Maf sensor required.
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