All ECU’s use different sensors to determine load. On the other hand the method made use of varies in between engines since the Silvertop takes advantage of a straightforward Vane type airflow meter while the Blacktop employs a more complicated vacuum (MAP) and throttle position (TPS) for greater throttle openings https://knoxyefzv.kylieblog.com/31855206/toyota-4age-engine-for-sale-an-overview