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Throttle by wire issue

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  #31  
Old 05-06-2008 | 01:05 AM
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number4
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Default RE: Throttle by wire issue

I have 11,200 milles on my 08 ultra and i have shut it off by the kill switch and by the ignition switch and I have never had this problem maybe you have the wrong pipes on the scoot soyou rev it before you shut it down just to hear them one more time.!
 
  #32  
Old 05-06-2008 | 01:13 AM
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number4
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Default RE: Throttle by wire issue

When i first got my 08 ultra I had the same problem with the squeaky brakes when I took it in for the 1000 mile sevice the dealer scuffed the brake alittle and the squeak went away no problems since

105 anniversary ultra glide
 
  #33  
Old 05-06-2008 | 06:13 AM
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XTrooper3936
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From: Retired and living in the mountains of NE PA
Default RE: Throttle by wire issue

ORIGINAL: frog13

ORIGINAL: DaveMK

ORIGINAL: XTrooper3936

The procedure I read calls for turning the kill switch to on and then turning the ignition switch to on for four seconds (now changed to ten seconds) and then off again. This is to be done four times. This is straight from my '08 Touring Model Service Manual.

What is the source of your information?
XTrooper, What page is that on?
Try page 4-17. Kill switch to run, ignition on and off four times, 3 seconds in between each time, but I heard they are recommending ten seconds. Don't sa nothin' about the throttle opening and closing.
Correct. It's on page 4-17. JK's dealer was half right. I guess than better than most of them.

FWIW, I can testify to the fact that this phenomenon does exist because it happened to me and it didn't involve me shutting down or starting the bike. A few weekends ago, I had just finished traveling about 100 miles on I-81 (the bike was idling normally before I got on the Interstate). When I pulled up to the stop sign at the end of the exit ramp, the motor was idling at ~1800 rpm! I could lower it temporarily by turning the throttle past the "zero" position, but it wouldn't hold. After clearing the intersection, I pulled into a gas station and turned the bike off, but when I fired it back up, the idle jumped back up to 1800 rpm again. I then conducted the idle reset procedure as described above (which I luckily remembered) and that brought the idle back to normal.
So the "crazy idle syndrome" is real and its cause isn't necessarily the fault of the operator. I'm guessing it's a bug in the ECM, i.e., a software problem.
 
  #34  
Old 05-06-2008 | 06:48 AM
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BillinNY
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From: Niagara Frontier, NY
Default RE: Throttle by wire issue

Do you guys having the throttle issues also have the security stsytem? Maybe a coorelation?
-Bill-
 
  #35  
Old 05-06-2008 | 07:46 AM
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XTrooper3936
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From: Retired and living in the mountains of NE PA
Default RE: Throttle by wire issue

ORIGINAL: BillinNY

Do you guys having the throttle issues also have the security stsytem? Maybe a coorelation?
-Bill-
No security system here.
 
  #36  
Old 05-06-2008 | 08:14 AM
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Windup08
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Default RE: Throttle by wire issue

I have had no problems with my 08 Ultra....I have the security system, but I ALWAYS shut off with the ignition switch and have never used the kill switch.
 
  #37  
Old 05-06-2008 | 08:20 AM
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OnTheFence
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Default RE: Throttle by wire issue

I think the dealers are fudging this issue a little bit. I don't think the throttle position when shutting down has anything to do with this. I tried to make mine do it and it won't happen.

According to the book. When the ingintion is turned on, the Throttlehomes to the "limp home postition" from thereit tries to close to 0. If the throttlecan't close orthe TGS readings are higher than expected at 0 throttle, the ECU reverts to"limp home". If all is well the the0 throttle position isstored.This has to fail on 4 consecutive ignition cycles forthe ECU to throw a code.

I take all this to mean, that it is not learning a new idle at shut down. Rather it is failing the 0 throttle position is within range during startup. From there the ECU is intentionally putting the bike in "Limp Home"

The book fix for this with or without the code is to replace the induction module.

ReferenceElectrical Manual page 4-200 DTCP2176.



 
  #38  
Old 05-06-2008 | 08:30 AM
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RD GLD
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From: NW Chicago Burbs!!!
Default RE: Throttle by wire issue

I have never had an idle issue what so ever and I have had my bike since October. I do have the security system and I always shut her down using the kill switch.....NO ISSUES!!!!!! RPM"S once warm at 900-1000....



 
  #39  
Old 05-06-2008 | 08:45 AM
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MarkandMary
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Default RE: Throttle by wire issue

I am picking up my new bike today, I will keep you posted on mine, actually, I will make that secondary, I will enjoy the ride first and let you know if I have any problems......[sm=biker2.gif]
 
  #40  
Old 05-06-2008 | 08:47 AM
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FastHoss
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From: Green Country,Oklahoma
Default RE: Throttle by wire issue

I think I'll keep my 05 a few more years
 



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