K. I was reading that a fuel pump can cause surging if it has a problem. That’s where I got that from.
I put gas line antifreeze in and filled the tank up, and drove for 5 miles. No CEL and no change in the surge every second.
Doesnt matter what speed, idle or anything. Every second, a slight surge/loss of power.
I guess I’ll have to bring it to the dealer on monday.
36k miles… change plugs and wires?