r/Dyna • u/hairless_mess • 1d ago

Whining noise with error code

Hey everyone, I have a 2016 FXDLS which is making this whining noise with the error code P0505. Does anyone know what it could be?
From what I understand that code is a problem with the idling module but I don’t understand what could be causing the noise. The bike starts just fine but the idle is inconsistent.

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u/DesperateNecessary42 54m ago

Sounds like an intake flange leak and the code is probably set from the idle air control motor not able to adjust any further to compensate for it