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Buell Forum » Old School Buell » Archive through July 09, 2011 » Bank Angle Sensor « Previous Next »

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Schmidt452
Posted on Wednesday, June 29, 2011 - 11:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I need some advice I think the bank angle sensor is going bad, How does one check for sure?

When flicking the bike from side to side it cuts out and pops on occasions. I checked the bike (99 X1) for any wires that have rubbed. I Changed the ignition switch the wires out of the switch were starting to discolor.

Thanks for any advice.
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Skntpig
Posted on Wednesday, June 29, 2011 - 11:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm not sure about a 99 but the only bank angle sensor my 97 S1 has is when the kickstand and shifter/peg drags the ground. Keeps on rockin' when she touches down.
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Preybird1
Posted on Wednesday, June 29, 2011 - 11:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can diagnose it without Ecmspy and a cable or the Hd scanalizer tool. You can also disable it using Ecmspy and see if that was really the problem. It could be shorting out. it is only supposed to work at or above 55 degree lean angle then the Ecm shuts off ignition and fuel systems. If it is bad there should be a code 44 in the Ecm memory. Disconnect the sensor conector and measure the voltage on the lt gn/gy wire and the bk wire. the voltage should be 4.0-6.0 volts. if it is 11-13 volts there is a short. The manual also says if there is not ferrous material within .25 in. of the sides face or top of bank angle sensor replace it. its a magnetic apparently?? It should totally shut the bike down and you would have to restart it. You might have a different sensor going out but BAS is easy and is under the tail on the left side but it is easy to miss if looking for it from different sides of the bike.
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Buell_bert
Posted on Thursday, June 30, 2011 - 02:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have posted this before but for my M2's, to disable the Bank Angle Sensor, unplug sensor and jumper A&B connector's. Do not jumper A&C because you will blow the ign. fuse. As for B&C, jumper them and let me know what happens. Let us know what you find out.
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Buell_bert
Posted on Thursday, June 30, 2011 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

OH I also thought bank angle sensors were only on 01-02 models. At least M2's were.
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Mebuellx1
Posted on Thursday, June 30, 2011 - 06:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can also just unplug the connector from the sensor and the bike will run fine, but it will have an engine code and light will stay on until reconnected.
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Schmidt452
Posted on Thursday, June 30, 2011 - 11:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks fellas!

I think I will try removing the the connector first, and go from there. Any one in the Milwaukee area with Ecmspy?
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Two_seasons
Posted on Thursday, June 30, 2011 - 10:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ted:
Find the diagnostic plug located under the headlight. It is almost square with a rubber cap over it.

With the connector lock pointing up, jumper the two right side pins in the connector. This will get you into diagnostic mode.

Make sure your kill switch is in the on position and turn the ignition key switch to ignition.

You'll be able to read out the Trouble Codes via the CEL light. Six flashes, pause, then first number, pause, then second number. Write all the numbers down. When you see the same sequence, you can end the test. Don't forget to un-jumper the connector.

If you don't have a Service Manual, post what you get and we'll be able to tell you what sensors etc may be giving you headaches.
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Schmidt452
Posted on Friday, July 01, 2011 - 10:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can own a Buell with out a service manual?!?

I bought service manual a few weeks after buying the bike new when the owners manual never offered any help other than take it to the dealer.
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Schmidt452
Posted on Monday, July 04, 2011 - 10:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I found the issue, I think, I found a rubbed wire on the rear rocker box. There are a lot of wires to check!
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