i have a 2009 Road King...i was leaving to come home on my bike and my check engine and oil light came on and tried to rev it up a little and nothing happened. tried to open throttle up all the way and nothing. I just changed oil and tranny fluids 2 days ago. i couldn't go over 15 mph. shut it off and waited a few and it went away for 2 minutes and happened again. Shut it down for 5 minutes again and it went away. any idea why this happened or if it will happen again?? Didnt run diagnostics yet and don't want to take it to a dealer unless its necessary. Thanks!!!

 

What's your oil level ?

 

Sounds like it went into limp mode. Check for codes?

 

There's a plug behind the intake backing plate. Unplug it, spray electronic contact cleaner on both ends of the plug. Blow it out gently with air. Put dielectric grease on the plug and reinstall it. Start the motorcycle and ride it.

Google Harley Throttle Body Plug Fretting.

Don't thank me; just forgive me when I say something stupid in the future

 

bingo!

 

What's limp mode?

 

If you then lose the other Hall effect sensor signal and the electronic control module is unable to determine what the rider wants to do, it goes into a forced-idle mode. In this condition it controls the motorcycle’s idle speed and will allow it to give just a little more adjustment than the pure idle control. It will give some spark advance based on engine speed so that when using the clutch you are still able to get the vehicle home, but it will be at an extremely slow speed—we don’t allow the throttle plate to open up and give you any unexpected power at all. This mode will allow a rider enough power under idle to get it up a few gears and get the bike moving. Providing even more safeguards is the limp-home mode that kicks in if you lose the DC motor or either of the throttle-position sensors. In this mode the engine will provide idle only.” If you find yourself experiencing any of these situations, a trip to the dealer is imperative.


Here's the whole article:
http://ridermagazine.com/2009/02/12/...ottle-control/

 

The twist grip sensor died on mine and caused that problem...

 

I'm glad my '07 FLHP still has a throttle cable. One less electronic gizmo to go bad and leave you up the proverbial creek.

 

on the 09's.
Twist grip sensor or a loose wire somewhere in the system usually the cause. "limp mode' is the result of anything going wrong in the TBW system.