All ECU’s use many sensors to ascertain load. Nevertheless the strategy employed varies in between engines given that the Silvertop uses a simple Vane form airflow meter although the Blacktop uses a far more sophisticated vacuum (MAP) and throttle placement (TPS) for greater throttle openings in which there's no vacuum. https://reiduqbng.livebloggs.com/37613202/details-fiction-and-toyota-4age-blacktop-engine-for-sale