The MECM-W433 A1 Engine Computer ECU is a direct replacement for the 1998-1999 Nissan Pathfinder QX4 3.3L PCM. This unit requires programming and has a maximum amperage of 12A. It comes with the necessary ECU and has an optimal durability feature. The Nissan brand ensures quality, and the manufacturer warranty guarantees reliability. This Engine Control Unit is designed for front placement on the vehicle and has 2 pin terminals for easy installation.