System Description

Fig 1: Identifying ECM System Description & Specifications

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying ECM Components

Courtesy of NISSAN MOTOR CO., U.S.A.

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve.

The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the camshaft timing control valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.