My 2012 Fat Boy Lo shows an engine code of P0051 and wont go away after adding pipes, A/C and tuner. Every once and a while I hear this "beep" from under the speedo when I first turn on the ignition prior to starting the bike. Does anyone know what this "beep" sound is??? The bike runs just fine but does have an engine code and the light stays on......

 

Strange? Take it in and have it looked at.

 

Got an appointment tomorrow morning, was hoping someone had an idea of what this is or means....

 

Its an o2 sensor code. They will replace it if you take it in. All it does is make you get bad gas mileage. Mine went from 42mpg to 28 when mine went bad.

 

You put new pipes on and the code showed up...the computer is not looking for the cat converters is it?? Just thinking out loud?