Good evening everyone,
I write from Italy, Tuscany.
I own a 2008 Buell XB12S with EBR ECU, K&N filter and Remus exhaust.
On the highway the engine light came on.
I connected with Buelltooth and the reported error is number 13 Rear O2 Inactive.
I therefore replaced the lambda probe with a new one from Bosch F00HL00311.
I had quite a ride and the light never came on, the only thing I noticed was the cooling fan coming on repeatedly (the day wasn't that hot).
Returning to the motorway, as soon as I exceeded 120 kmh, the warning light came on again.
As soon as I got home I connected with ECMSpy and the error continues to be O2 Sensor.