Ansaugkrümmerdrucks

Ansaugkrümmerdrucks, often referred to as manifold absolute pressure (MAP) in English, is a crucial sensor in modern internal combustion engines. It measures the pressure inside the intake manifold, which is the component that distributes the air-fuel mixture to each cylinder. The MAP sensor's reading provides the engine control unit (ECU) with vital information about the engine's load condition.

This pressure directly correlates to the amount of air entering the engine. Under high load, such as during acceleration, the throttle plate is open wide, leading to higher manifold pressure. Conversely, during idle or deceleration, the throttle plate is mostly closed, resulting in lower manifold pressure. The ECU uses the MAP sensor data, along with information from other sensors like the oxygen sensor and throttle position sensor, to precisely calculate the amount of fuel to inject and the optimal ignition timing.

Accurate measurement of Ansaugkrümmerdrucks is essential for efficient combustion, optimal performance, and reduced emissions. A malfunctioning MAP sensor can lead to a range of drivability issues, including rough idling, poor acceleration, increased fuel consumption, and illumination of the check engine light. Diagnosis and repair of MAP sensor issues are typically performed using specialized diagnostic tools that can read sensor data and fault codes.