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Author Topic: Electric Throttle Sensitivity  (Read 2528 times)

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JETCVO

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Electric Throttle Sensitivity
« on: July 20, 2010, 02:20:05 PM »

Good afternoon my CVO friends,

Going into dealer for electric throttle sensitivity tomorrow.
Any input from experience in this area?
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DavidB

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Re: Electric Throttle Sensitivity
« Reply #1 on: July 20, 2010, 06:51:26 PM »

Sensitivity ? As In ? :nixweiss:
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HOGMIKE

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Re: Electric Throttle Sensitivity
« Reply #2 on: July 20, 2010, 07:00:00 PM »

Good afternoon my CVO friends,

Going into dealer for electric throttle sensitivity tomorrow.
Any input from experience in this area?


Can you give us a little more detail of just what the complaint is?
Pretend we are your Service Manager!
 :nixweiss:
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HOGMIKE

HD4CPA

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Re: Electric Throttle Sensitivity
« Reply #3 on: July 20, 2010, 07:04:57 PM »

I believe mine is set to 100 on all settings in my TTS Mastertune map.
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JETCVO

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Re: Electric Throttle Sensitivity
« Reply #4 on: July 20, 2010, 07:39:23 PM »

Can you give us a little more detail of just what the complaint is?
Pretend we are your Service Manager!
 :nixweiss:
Slightly open the throttle, the RPM surges.
Very hard to hold a constant setting unless you're at cruise speeds.
Too sensitivity! (come to think of it, I had a girlfriend like that once)  ;D
« Last Edit: July 20, 2010, 07:41:53 PM by JETCVO »
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1sharprdkg

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Re: Electric Throttle Sensitivity
« Reply #5 on: July 20, 2010, 08:37:58 PM »

Good afternoon my CVO friends,

Going into dealer for electric throttle sensitivity tomorrow.
Any input from experience in this area?

Does your bike have a TTS or PCV or is it stock? Mine is stock and has a 2 or 3 second lag at parking lot speeds and slow turns. Can Stealer make adjustments for this? I assume they can. I thought adjustments in TTS or PCV can correct my issue. Problem is I just don't like or trust my local Stealer.
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Keats

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Re: Electric Throttle Sensitivity
« Reply #6 on: July 20, 2010, 08:57:25 PM »

Good afternoon my CVO friends,

Going into dealer for electric throttle sensitivity tomorrow.
Any input from experience in this area?



Only speak as to how the throttle makes you feel

no name calling

with several sessions your training should be complete

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grc

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Re: Electric Throttle Sensitivity
« Reply #7 on: July 20, 2010, 09:03:12 PM »


One of the many things that Electronic Throttle Control can do better than cables is let the manufacturer tailor different response curves for throttle actuation.  In other words, if you rotate the throttle grip 20%, they don't have to actually open the throttle 20%.  It's controlled in the ECM, and certain tuning devices and software like the TTS let you customize the throttle response.  I don't personally know if the dealers can also do this with the Digital Technician equipment and the stock ECM calibration, but it's worth asking the question. 

It's possible that the low speed "surge" isn't being caused by the throttle response curve.  It could also be the result of the tune (fuel and ignition maps).  Has the bike been tuned, or is it running the stock ECM calibration?


Jerry
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mrmagloo

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Re: Electric Throttle Sensitivity
« Reply #8 on: July 21, 2010, 01:18:32 AM »

Not to side track, but is there a way to increase the return spring tension? I often find that just the loose weight of my hand will hold the throttle open after disengaging the cruise and I have to remember to physically virtually lift my hand to close the throttle. It's real strange how light the return is.
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JETCVO

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Re: Electric Throttle Sensitivity
« Reply #9 on: July 21, 2010, 01:28:28 AM »

One of the many things that Electronic Throttle Control can do better than cables is let the manufacturer tailor different response curves for throttle actuation.  In other words, if you rotate the throttle grip 20%, they don't have to actually open the throttle 20%.  It's controlled in the ECM, and certain tuning devices and software like the TTS let you customize the throttle response.  I don't personally know if the dealers can also do this with the Digital Technician equipment and the stock ECM calibration, but it's worth asking the question. 

It's possible that the low speed "surge" isn't being caused by the throttle response curve.  It could also be the result of the tune (fuel and ignition maps).  Has the bike been tuned, or is it running the stock ECM calibration?


Jerry
Hey Jerry,
Thanks for the reply.
About 2 months ago I had the dealer down load the newest Factory ECM download for heat help!
This had no bearing on the throttle responce problem, but it also didn't help.
I've had this sensitive idiosyncrasy problem from day one, but thought I just needed to get use to the “Throttle-by-wire” system.
I have a stock 110, (no tuner) and think I should not have to spend additional funds to make it run correctly!

Just to add some additional insight to this scenario, I understand completely how the T.B.W System works.
Have used this type of hard wear for years and it's usually a softwear problem when it doesn't work properly!
I think the MoCo is a little behind the power-curve on the system.
Again, thank you.
« Last Edit: July 21, 2010, 01:41:58 AM by JETCVO »
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Gecko

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Re: Electric Throttle Sensitivity
« Reply #10 on: July 21, 2010, 07:21:02 AM »

I have a stock 110, (no tuner) and think I should not have to spend additional funds to make it run correctly!

:D :huepfenlol2: :D :carrot: :D :D :huepfenlol2: :huepfenlol2:

Always good to start the day off with a laugh.
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aushog

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Re: Electric Throttle Sensitivity
« Reply #11 on: July 21, 2010, 07:52:49 AM »

Not to side track, but is there a way to increase the return spring tension? I often find that just the loose weight of my hand will hold the throttle open after disengaging the cruise and I have to remember to physically virtually lift my hand to close the throttle. It's real strange how light the return is.

I had to lift my hand when the bike was brand new.  Got worse over time until it actually started sticking.  Dealer fixed it and 10,000 miles later it is still good.  Not quite as strong a return spring as the old style bike was, but don't have to lift my hand.  I think they said it needed lubrication.

Returning to original post subject:  I wish the TBW was a little less sensitive on the throttle, especially in the low range.  But maybe that's just the extra power!
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grc

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Re: Electric Throttle Sensitivity
« Reply #12 on: July 21, 2010, 08:56:18 AM »

...............................
I have a stock 110, (no tuner) and think I should not have to spend additional funds to make it run correctly!

...............................
I think the MoCo is a little behind the power-curve on the system.
...............................

I think you're right, the MoCo is WAY behind the curve on this, just like it is on most other systems.  On the other hand, they still seem to be able to get top dollar for half baked products, so I'm thinking they aren't the only people who need to get a clue. 

As for spending additional funds to make your overpriced Harley run decently, that was my feeling when I bought my SEEG.  I figured that $30k, which was more than a well equipped midside car or loaded small SUV cost at the time, should have been enough to get a motorcycle that actually ran well without further tinkering.  After fighting the fight to no avail, I had to spend additional funds to get rid of the lousy low speed response, stumbles, occasional stalls, etc.   I find it to be very depressing to think that 5 years later H-D still can't come up with calibrations that will run at least as well as a worn out 1992 Chevy.

Go ahead and fight them, but eventually you'll succumb like we all have.  Find a good tuner, have the bike tuned, and don't look back.  And btw, my approach to this is that there are plenty of choices out there for tuning devices/software, so paying H-D more money to fix their inability to make the bikes run properly isn't necessary or recommended.  TTS MasterTune is an excellent product, or you might prefer something from PowerCommander or one of the others.  If the only product available was the SEST from Harley, I'd sell the bike and walk first.


Jerry


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mrmagloo

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Re: Electric Throttle Sensitivity
« Reply #13 on: July 21, 2010, 11:52:42 AM »

I had to lift my hand when the bike was brand new.  Got worse over time until it actually started sticking.  Dealer fixed it and 10,000 miles later it is still good.  Not quite as strong a return spring as the old style bike was, but don't have to lift my hand.  I think they said it needed lubrication.

Returning to original post subject:  I wish the TBW was a little less sensitive on the throttle, especially in the low range.  But maybe that's just the extra power!
It returns fine, while I'm riding around normally, and when you let go of the grip. However, my Deuce has a very strong return, so the SEUC trips me up with it being so soft.

I think I'll take the air cleaner off and see how they have it set up. Might be able to double up the spring or replace it.
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JETCVO

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Re: Electric Throttle Sensitivity
« Reply #14 on: July 22, 2010, 02:19:19 AM »

Good afternoon my CVO friends,

Going into dealer for electric throttle sensitivity tomorrow.
Any input from experience in this area?

UPDATE!!
Got the new Throttle down load today with MoCo authorization.
First the dealer tech said the throttle voltage was right on and the CVO down load should be left alone!
With that mind set, he was ready for me to take the bike away.
The Service Manager made a call to MoCo with my Reference Number and got a different result.
“Do the down load”
New down load only took about 15 minutes and I was on my way.
Did it help you ask? Don't really know, I live 12 minutes from the dealer and I was on a tight schedule today.
I think it had a different feel, but traffic was heavy and well, I was enjoying myself.
It doesn’t take much to make me happy you see. Just make the bike run right and I'm beaming and smiling like a possum eating Persimmons!
More later when I have time to play.
Thanks for all the input.
JETCVO Ron
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