Can you do a diagonal test on level ground?if its too steep ramp it wont go up. i tried go uphill with VDC and if wheels loose traction and i dont have any momentum then car does nothing VDC just cuts all off leaving with not enough power to move.
at least my engine just dont have enough power with VDC to go uphills slowly on loose ground it cuts power off too much.
but one ramp on good surface should make it
What I did was put a ramp on opposing corner and axles.
One ramp front passenger side, one ramp rear driver side.
That was enough to stop the Baja from moving forward and turning the tires into smoke.