DTC P049D-00: EGR 'A' Control Position Exceeded Learning Limit: General Description

The electric EGR control valve is mounted between the EGR cooler and the exhaust line, and this solenoid type value controls the amount of exhaust gas according to the duty signal of the ECM calculated based on the required intake air quantity and engine load. The electric EGR control valve consists of the motor for valve operation and the position sensor.

The exhaust gas recirculation (EGR) is a system that reuses exhaust gas as intake air in order to reduce excessive temperatures and air inside the combustion chamber.