Monitor Description

The manifold absolute pressure sensor detects the intake manifold pressure as a voltage using a built-in sensor. The ECM calculates intake manifold pressure based on this voltage and also calculates the EGR valve and purge VSV opening amount according to changes in the intake manifold pressure. When the atmospheric pressure drops below the intake manifold pressure by 3 kPa (22.5 mmHg) or higher, the ECM interprets this as a malfunction in the manifold absolute pressure sensor and sets P0106.