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TPS Fault on Stelvio NTX (2012)

You would think! This is one of my Stelvio's small mysteries right now: Slightly loose right shaft bushing and a hiccup between 5-6k would seem connected, but no leak detectable with smoke, argon, or carb cleaner. 🤷‍♂️
 
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ZClark73 said:
You would think! This is one of my Stelvio's small mysteries right now: Slightly loose right shaft bushing and a hiccup between 5-6k would seem connected, but no leak detectable with smoke, argon, or carb cleaner. 🤷‍♂️
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As stated via email, I think your higher RPM hiccup electrical.
 
GTM® said:
As stated via email, I think your higher RPM hiccup electrical.
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Oh for sure; I trust your diagnosis.

I was saying that it’s weird because you would think that there would be a connection between a loose shaft bearing and a hiccup, but there isn’t in this case.

Sorry for the lack of clarity.
 
ZClark73 said:
I was saying that it’s weird because you would think that there would be a connection between a loose shaft bearing and a hiccup, but there isn’t in this case. Sorry for the lack of clarity.
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I can get the bikes I've had to cough and sneeze when I wiggle the butterfly shaft, and idle is never steady or very low. I can also see a fluctuation in TPS degrees as well.
 
GTM® said:
I can get the bikes I've had to cough and sneeze when I wiggle the butterfly shaft, and idle is always not steady on them. I can also see a fluctuation in TPS degrees as well.
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Awesome information! Thank you!

Any thoughts on preventative maintenance for that bushing?
 
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