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Panshovevo
Posted on Tuesday, September 15, 2015 - 08:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My '09 CR was de-noided by a previous owner.
The '08 has had the cable disconnected, but the solenoid is still in place and hooked up to the wires.

I read the thread linked below, but the '09 has been done differently, and I wonder if anyone has any idea based on what I can see.
http://www.badweatherbikers.com/buell/messages/290 431/490767.html

The bike (the '09 CR) has a Race Use Only ECM. Instead of a resistor in the terminal on the end of the solenoid wires, there is another plug with two small black wires leading down between the left side of the rear cylinder and the frame.
It would appear the circuit is being used to power something else.
Thus far, I haven't been able to figure out what.

Any thoughts?

I plan to remove the solenoid from the '08 R. It has a stock ECM with a Power Commander V and Auto-tune. I assume I would need the resistor for this one, based on the info in the linked thread.
Accurate?
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Jeepinbueller
Posted on Tuesday, September 15, 2015 - 09:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The race ECM should disable the throttle actuator without needing to use the resistor. If you don't have a race ECM, the resistor is the cheap way to bypass it, but it's unnecessary since it isn't used by the new ECM.

The wires going to the actuator currently are a different story... the actuator is only active during a very small, select time frame during acceleration in a certain gear, so using it for anything else is a mystery.
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Zac4mac
Posted on Tuesday, September 15, 2015 - 11:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sounds like "the harness" a band-aid fix from H-D for 09-10 models.
A proper fix is a new stator and a rotor EDM'd with an oil-spray hole to cool the stator.
The harness connects to the stator output and the Regulator, powered by the Active Air Intake Solenoid(da noid)

Keep the harness and a good relay(they burn out quickly) until you get a stator/rotor combo.
Rotor nut - Loctite Red272, tighten to 250 ft-lb.
Back off 720 degrees and then tighten to 295 ft-lb.

A 3/4 drive torque wrench will go that high or a 2 ft breaker bar with 150 pounds at 3 O'clock is 300 ft-lb.

The 08s had a lower output but completely reliable charging circuit.

Z
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Panshovevo
Posted on Thursday, October 08, 2015 - 07:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Strange stuff in the '09 CR's wiring harness.

I finally took the time to follow the wires hooked to the terminal that formerly powered the solenoid.

I need to verify this with a meter, but it appears the two small black wires (which are wrapped with something resembling friction tape) join the bundle going to the ECM, become one black wire at some point, and enter the ECM through the black connector.

I need to spend a little more time on it, identify the position in the black connector, and see if I can sort it out.

Definitely not "the harness", although it may have been at one time.

I found some other odd things in one of the bundles that need to be figured out too. Homemade looking splices and stuff...
Ran out of time tonight.

(Message edited by Panshovevo on October 08, 2015)
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Jeepinbueller
Posted on Friday, October 09, 2015 - 11:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I also have an '09 CR, Pans. If you keep finding weird stuff, I'll check mine to confirm if it left the factory that way.
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Panshovevo
Posted on Friday, October 09, 2015 - 11:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Josh, that will be helpful.

I hope to get back into it this afternoon.
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Panshovevo
Posted on Friday, October 09, 2015 - 05:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

First oddity: two brown w/orange stripe wires at positions 31 and 32 of the black ECM plug. The wiring diagram shows them joined just beyond the plug.

They are joined, but are wrapped with black duct tape. I don't feel a butt splice or solder joint, so I'll most likely cut the tape off and make sure it's a secure connection.

Just noticed that the numbering on the plug is backwards from the numbering on the wiring diagram.
These wires are in position 2 and 3 going by the plug's numbers.
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Panshovevo
Posted on Friday, October 09, 2015 - 05:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

As for the wires leading from the connector that used to hook up to the solenoid, both seem to be connected to a black wire that, near as I can tell, is one of the ECM grounds, and should be connected to the cylinder head ground point.

I may dig out my video scope and try to verify it's the same wire with no branches...

I think I'm seeing .3-.4 Ohms of resistance between the ECM connector end, and both of the wires at the other end, but can't swear to that, as it's a 4 hand operation to check with the tiny receptacles of the plug.

I need to find a better way to check it.

Just had a flash of inspiration...I need to check for continuity to ground from the ECM plug side with both plugs disconnected.

Edited to add: Not grounded when checked on both ends, and both wires on the solenoid plug end. Puzzling...


(Message edited by Panshovevo on October 10, 2015)
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Panshovevo
Posted on Friday, October 09, 2015 - 08:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Near as I can determine, the black wire in the black ECM plug that the two mystery wires are attached to is in position 21 in the plug.

This is based on the numbering of surrounding wires in the diagrams in the Electrical Manual.

I'm still looking, but thus far, haven't found that wire in any of the diagrams.

It's definitely not the ground wire I thought it was.

There may be a resistor in the line. Measured across the two wires at the plug, and from the ECM plug end to either wire, I get an average of .3 Ohms resistance.

(Message edited by Panshovevo on October 09, 2015)
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Panshovevo
Posted on Saturday, October 10, 2015 - 05:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The two brown w/orange stripe wires mentioned above seem to have a solid joint under the tape that I didn't feel yesterday, so I'm leaving it as is.

Still no idea about the two black wires attached to the plug that formerly powered the noise control solenoid, and are now attached to a mystery wire on the ECM.

I pulled the wrapped wires back and forth so I could see all of it from one end then the other, and it's not attached to anything else.
Approximately halfway along the length, the two wires become one. They are connected, with a small amount of resistance between them.

The hot wire that formerly fed the solenoid is still hot, and the former ground wire still enters the ECM at another point.

It's a mystery to me.
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Panshovevo
Posted on Sunday, October 11, 2015 - 01:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Anyone have any ideas at all on the wires attached to the plug that used to power the solenoid?

There must have been some connection to the ECM to activate the relay for the "fix harness".

I can't wrap my head around how, but the only thing that makes any sense to me is this is a remnant of that harness.

The relay isn't in there, nor is the rest of the "fix harness".
All the legs of the stator are connected directly to the regulator.

I think I'll try leaving it disconnected, ride it, and see what happens.

I would try contacting the previous owner, but he has ignored all but one of numerous texts sent to him, probably because he stiffed me on promised stock parts.
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Nuts4mc
Posted on Sunday, October 11, 2015 - 05:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

PanS...you can go here...may help or confuse you even more...I have an '08.... so no stator harness fix...with the "Race Only" ECM...it ignores the solenoid...

http://www.badweatherbikers.com/buell/messages/290 431/566073.html?1274317852
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Panshovevo
Posted on Monday, October 12, 2015 - 04:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the link, Ron. It would have been a lot more helpful if Gemini's pic of the "fix" wiring diagram was still accessible.

FWIW, I rode it about 30 miles yesterday with the wires disconnected.
This was also the first real road time since the fuel pump replacement.

Initially, it seemed to be 'hunting' at lower rpms and throttle settings.
I'm guessing the ECM was adjusting to the improved fuel pressure with the new pump, but I can't say for sure. The further I rode, the better it ran.

Rode the same distance home with the wires hooked up again, didn't notice any change from how it was running by the time I reached my turn around point.

Because of the variable of the new fuel pump, I need to repeat the test to see if disconnecting the wires has any effect.

No trouble codes other than the ubiquitous Comm Error. (6.1, I haven't installed the new IC yet, wanted to see if the low fuel warning light issue was resolved with the new pump...seems to be, the light hasn't come on yet)

The PO193 I was getting just after the pump change seems to have resolved itself.
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Two_seasons
Posted on Tuesday, October 13, 2015 - 04:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I thought that de-noiding bike required a resistor plug with stock ECM.

Could it be that someone added resistor in line w/o (instead of) resistor plug?
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Panshovevo
Posted on Tuesday, October 13, 2015 - 05:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The bike in question has a Race Use Only engraved ECM.

Does anyone know the resistance of the resistor plug used with a stock ECM?

Anyone know where the "fix harness" taps into the ECM to operate the relay?

Edited to add: I apologize for the confusion created by discussing two different bikes with different setups in one thread.

(Message edited by Panshovevo on October 13, 2015)
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Dannybuell
Posted on Tuesday, October 13, 2015 - 05:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

https://www.youtube.com/watch?v=nBYEYGJfyBw&featur e=youtu.be
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Panshovevo
Posted on Tuesday, October 13, 2015 - 06:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I watched that earlier today. It doesn't address the connection to the ECM, just shows how to hook your stator back up to the regulator and bypass " the fix".
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Colintornado
Posted on Wednesday, October 14, 2015 - 02:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The harness wire that goes to the ecu is a black wire,it connects to plug J2 on terminal 21.If that is what you want to know.
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Panshovevo
Posted on Wednesday, October 14, 2015 - 03:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


quote:


Colintornado
Posted on Wednesday, October 14, 2015 - 02:25 pm:
The harness wire that goes to the ecu is a black wire,it connects to plug J2 on terminal 21.If that is what you want to know.




Thanks, that helps.
That's where the mystery wire goes.
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