Ok, so my 2012 6.7L deleted 364 non-VGT turbo swap feels like a brake is grabbing from 50 to about 65 just for like a second.

All wheels spin freely when off the ground; sometimes, I get the low fuel rail pressure code.

I replaced the fuel control actuator just wondering if anyone else had an issue like this.

My thoughts were fuel pump, CP3, or possibly torque convertor.

I know the TC wouldn't make the low fuel rail but the drag part.