All ECU’s use a variety of sensors to determine load. However the strategy made use of varies involving engines as the Silvertop employs a straightforward Vane kind airflow meter although the Blacktop takes advantage of a far more sophisticated vacuum (MAP) and throttle situation (TPS) for much larger throttle openings https://remingtonrwxmz.blogminds.com/5-essential-elements-for-blacktop-20v-4age-28893992