Any updates?
TBW problem?
Thread Starter
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Grand HDF Member
Joined: Mar 2010
Posts: 3,758
Likes: 3,176
From: Central Indiana
TBW problem?
This morning on my way to work, rolling on the highway about 65mph when the engine light comes on and bike starts slowing down. bike does not die, but is idling, no response to twist of throttle. I pull over, turn the ignition off, turn back on, bike starts and runs fine the remaining 30 miles.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
Cruiser
Joined: Dec 2008
Posts: 173
Likes: 1
From: Foothills of North Carolina
This morning on my way to work, rolling on the highway about 65mph when the engine light comes on and bike starts slowing down. bike does not die, but is idling, no response to twist of throttle. I pull over, turn the ignition off, turn back on, bike starts and runs fine the remaining 30 miles.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
Mine done it too.
Road Captain
Joined: May 2012
Posts: 610
Likes: 5
From: N.C.
This morning on my way to work, rolling on the highway about 65mph when the engine light comes on and bike starts slowing down. bike does not die, but is idling, no response to twist of throttle. I pull over, turn the ignition off, turn back on, bike starts and runs fine the remaining 30 miles.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
This is an '09 UC.
I tried a search but found no reports of this, but search is not the greatest.
Has anyone heard of this before? Don't want to get stranded.
Last edited by CPT America; Jun 10, 2013 at 02:29 PM.
Road Master
Joined: May 2009
Posts: 867
Likes: 17
From: Brentwood, TN
Mine has done it twice usually right after a pit stop. Mine had to sit about 15 minutes before coming back to life. Dealer checked under warranty and indicated connector to throttle body was the problem. If you look up info on "limp mode" it is a system that drops throttle to approx 2000 rpm or less and only usable to get to a safe stop when ECM detects voltage issues on TBW circuit. Its a safety system to prevent uncontrolled throttle but is a pain in the butt when it activates. It usually also registers some TBW codes in the ECM. I'm not convinced dealer fixed the issue but it has not done it again in the last 9 months since service.
Post above indicates its caused by moisture which may be partly true but I think a big contributor is vibration of the motor chaffing the connector pins. The grease helps both issues.
Post above indicates its caused by moisture which may be partly true but I think a big contributor is vibration of the motor chaffing the connector pins. The grease helps both issues.
Last edited by TNCarters; Jun 10, 2013 at 02:30 PM.
Thread Starter
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Grand HDF Member
Joined: Mar 2010
Posts: 3,758
Likes: 3,176
From: Central Indiana
Cleaned the connectors and added di grease last night, went for short ride last night and rode to work this morning with no issues!!!
Thanks for the help!
Thanks for the help!
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Tourer
Joined: Jan 2012
Posts: 347
Likes: 0
From: Texas
Everything I've read...there doesn't seem to be a true "fix", yea you might get it working again..but..
Mine quite about 500yds from home..turned it off and on again and worked fine after I pulled it in the garage. Next day I fired it up and it made a horrid noise behind the air filter. Check engine light was on and wouldn't go off.
Honestly a bit nervous but rode it to the dealer through heavy traffic about 6-8 miles away. The service manager listened to the noise and immediately went to his top tech and said... "hey come check this **** out!"...never a good thing when the service manager say's that. So it appears my throttle actuator is bad..
Makes me nervous that I'm going to be pulling through and intersection or I'll be in a situation where I need to get out of the way and have no throttle. Seems this is an issue that won't go away for a lot of folks.
Mine quite about 500yds from home..turned it off and on again and worked fine after I pulled it in the garage. Next day I fired it up and it made a horrid noise behind the air filter. Check engine light was on and wouldn't go off.
Honestly a bit nervous but rode it to the dealer through heavy traffic about 6-8 miles away. The service manager listened to the noise and immediately went to his top tech and said... "hey come check this **** out!"...never a good thing when the service manager say's that. So it appears my throttle actuator is bad..
Makes me nervous that I'm going to be pulling through and intersection or I'll be in a situation where I need to get out of the way and have no throttle. Seems this is an issue that won't go away for a lot of folks.
Seasoned HDF Member
Joined: Aug 2007
Posts: 39,824
Likes: 2,121
From: Central, Ca.
Everyone should do this as preventative maintaince, the throttle body connector as well as the ecm connector under the seat
