Hey everyone, so I am at a loss.

I am getting a CEL with a code of “P0652 - ECM - Sense Reference Volt 2 Circ Lo” doing a quick search online states that it could be two things.

It could be a weak battery or a crank sensor, so obviously, that is not hard, but what is throwing me off is that I get that.

Then right around the same time this occurred, the truck started loping or sputtering with the exhaust brake where when I am driving and let off its not one solid single exhaust brake application.

Still, there is one reliable exhaust brake to several sputters until it gets below about 20 or 30 mph than at the slower speed.

These two things have me at a complete loss, are they related or two separate things? TIA.

Truck Info:
2014 RAM 2500 6.7 L Stock - EGR and DEF Delete, Throttle Valve Delete