2021 is TGV Position Sensor 2 Circuit Low... This code came up after I reinstalled the engine, but to my knowledge the sensor(s) weren't unplugged, so any suggestions? Also, what would this cause? It isn't smooth under power, it stutters a little all the way through thr RPM band...
that would definitely cause what you are describing. if there is a problem not allowing the TGV (tumbler valves) to not open fully then obviously not enough air or perhaps too much air at the wrong times can cause stuttering or hesitation.