Scenes from the highway shoulder...
#11
08-19-2021 | 07:05 PM
Road Master
Joined: Nov 2018
Posts: 1,194
Likes: 878
From: Eastern Ont.
The ol' RGS let me down last night.
I took a nice little ride outside of the city after work yesterday evening, and the weather was excellent. I figured on 60-70 miles and was thoroughly enjoying myself. Shined up nice, running great, feeling good. On my return trip to home, I decide to take the freeway for the remaining 10 miles. As I made my right turn onto the on-ramp, the engine just gently stalled without fanfare. Not a single hiccup prior to that. I glided to the shoulder and attempted to restart. Nothing. Not a click, grunt, nothing. All indicators working, about 12.5v showing on the gauge. Clicked over the kill switch a couple of times just for the sake of elimination. Still nothing.
Roadside code check:
P1511 EFI Power Management Mode
P1514 ETC Air Flow Fault/Error
P2105 EFI Forced engine shutdown
P2135 TPS Correlation Error
After clearing the codes, the bolded ones came back immediately as hard faults. The bike did crank and start after clearing, albeit in limp mode. Fortunately my buddy was able to get my trailer to me and we loaded up my bike and hauled it home without further incident.
Tonight I will be doing some diagnosis, and worst-case scenario will be a failed throttle body assembly. It's a Screamin' Eagle unit, and if that's the failed component, I really, really hope I can get one in time to keep my appointment with Fuel Moto next month. I still have the stock unit sitting on a shelf in my garage, and that'll be my test equipment used this evening, along with my PV2. I'll follow up on the thread when I figure this out. Wish me luck!
I took a nice little ride outside of the city after work yesterday evening, and the weather was excellent. I figured on 60-70 miles and was thoroughly enjoying myself. Shined up nice, running great, feeling good. On my return trip to home, I decide to take the freeway for the remaining 10 miles. As I made my right turn onto the on-ramp, the engine just gently stalled without fanfare. Not a single hiccup prior to that. I glided to the shoulder and attempted to restart. Nothing. Not a click, grunt, nothing. All indicators working, about 12.5v showing on the gauge. Clicked over the kill switch a couple of times just for the sake of elimination. Still nothing.
Roadside code check:
P1511 EFI Power Management Mode
P1514 ETC Air Flow Fault/Error
P2105 EFI Forced engine shutdown
P2135 TPS Correlation Error
After clearing the codes, the bolded ones came back immediately as hard faults. The bike did crank and start after clearing, albeit in limp mode. Fortunately my buddy was able to get my trailer to me and we loaded up my bike and hauled it home without further incident.
Tonight I will be doing some diagnosis, and worst-case scenario will be a failed throttle body assembly. It's a Screamin' Eagle unit, and if that's the failed component, I really, really hope I can get one in time to keep my appointment with Fuel Moto next month. I still have the stock unit sitting on a shelf in my garage, and that'll be my test equipment used this evening, along with my PV2. I'll follow up on the thread when I figure this out. Wish me luck!
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strych9 (08-19-2021)
#12
08-19-2021 | 09:02 PM
Thread Starter
|
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,245
Likes: 9,960
From: Omaha,NE
Well, the fix was a bit simplistic: a little thing called "terminal abrasion". If the pin fit between a male and female terminal is anything less than tight, vibrations can cause them to "abrade" against each other, resulting in something similar to corrosion. The throttle body pins (both male and female) are gold-plated on 2010-on model years, and therefore practically impervious to chemical-reactive corrosion. But they are not impervious to abrasion.
Long story short, I took the TB connector apart and polished the offending terminal, pinched it slightly for tighter pin-fit, and Bob's your uncle. She's running normally with no codes.
As an aside, the early drive-by-wire models did have corrosion issues on those pins, and my codes lined up with that issue and led me to the root cause after researching the internet.
This fix cost nothing but time. Hallelujah!
Long story short, I took the TB connector apart and polished the offending terminal, pinched it slightly for tighter pin-fit, and Bob's your uncle. She's running normally with no codes.
As an aside, the early drive-by-wire models did have corrosion issues on those pins, and my codes lined up with that issue and led me to the root cause after researching the internet.
This fix cost nothing but time. Hallelujah!
#13
08-19-2021 | 09:54 PM
Road Warrior
Joined: Apr 2007
Posts: 1,641
Likes: 156
From: florida
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strych9 (08-19-2021)
#14
08-19-2021 | 10:24 PM
Grand HDF Member
Joined: Jun 2009
Posts: 4,000
Likes: 1,226
From: On the Front Range, CO
Who doesn’t love a story with a happy ending!?
Nice work on tracking down the cause and repairing yourself, and even better that it didn’t cost anything but time!
And thanks for coming back to give us all closure - I see so many threads that just die and always wonder what happened. It’s nice to know the whole story.
Nice work on tracking down the cause and repairing yourself, and even better that it didn’t cost anything but time!
And thanks for coming back to give us all closure - I see so many threads that just die and always wonder what happened. It’s nice to know the whole story.
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#16
08-20-2021 | 05:18 AM
Cruiser
Joined: Jan 2010
Posts: 209
Likes: 58
From: Sunshine state
I believe HD recommended Nyogel 760G on the non-golden TB connector pins to mitigate fretting corrosion.....some folks used regular dielectric grease but I believe 760G is specially formulated to prevent fretting....based on your findings it looks like maybe even the gold plated pins could benefit from this...
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strych9 (08-20-2021)
#18
08-20-2021 | 07:10 AM
Thread Starter
|
Seasoned HDF Member
Joined: Aug 2017
Posts: 7,245
Likes: 9,960
From: Omaha,NE
I believe HD recommended Nyogel 760G on the non-golden TB connector pins to mitigate fretting corrosion.....some folks used regular dielectric grease but I believe 760G is specially formulated to prevent fretting....based on your findings it looks like maybe even the gold plated pins could benefit from this...
#19
08-20-2021 | 07:26 AM
Seasoned HDF Member
Joined: Apr 2015
Posts: 8,616
Likes: 4,252
From: Here
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strych9 (08-20-2021)
