Error 13 Rear 02 Inactive

[motoguy]

Left vertical engine brace is large bar from engine case to frame attachment point

I apologize for the repeated questions. I'm not purposefully trying to be dense, but trying to clarify. Are you referring to this mount (the dogbone part):

s-l960.jpg

or this mount?

th75308-04-buell-lightining-xb12-mount-bracket-location__49623.1700250548.jpg

Those are the only mounts I can think of (aside from the front V bar or the front dogbone from the engine to the V bar).

These are all of the engine mounts I can recall (rear isolator / mount not pictured), with one of these going to the V bar.

s-l960.jpg

[motoguy]

02 values established at normal operating temps and closed loop operation

Ok, thank you! Sounds like I'll need to check that when I get back home after a ride. Or maybe leave the Buelltooth hooked up during a ride and check it that way.

3 small wires you mentioned at negative cable frame end and frame spar attachment are all grounds including ECM

Good deal! I can scratch the ECM ground off the list then. Thanks again for all the info.