All ECU’s use different sensors to determine load. On the other hand the method utilised differs in between engines as being the Silvertop takes advantage of a simple Vane type airflow meter although the Blacktop employs a more elaborate vacuum (MAP) and throttle situation (TPS) for bigger throttle openings in https://toyota4age94703.jiliblog.com/88488360/everything-about-4age-20v