Motor Nissan Diesel ED30

Greetings:

Adapt the Nissan Diesel Ed30 engine to my van Ford Econoline E150 1986, when it is not well adapted, because the engine when accelerating or decelerating, loses its regime, interrupting at times, giving shaking to the car, I do not know if it will be point, it will be problems when pulling the oil tank (it has a previous gasoline bench without activating), or it will be the injection pump Where there é informações técnicas deste mecanismo. Obrigado.