All ECU’s use various sensors to determine load. On the other hand the tactic utilized may differ between engines given that the Silvertop utilizes a simple Vane sort airflow meter although the Blacktop makes use of a more elaborate vacuum (MAP) and throttle place (TPS) for more substantial throttle openings https://4age20v82579.pointblog.net/detailed-notes-on-blacktop-4age-for-sale-73669363