This Exhaust Gas Temperature Sensor, part number 04L906088HJ from VAG, is a critical component for modern diesel engines. It accurately measures the temperature of exhaust gases, providing vital data to the engine control unit (ECU). This information is used to optimize various engine functions, including the diesel particulate filter (DPF) regeneration process. By monitoring exhaust gas temperature, the ECU can determine the ideal conditions for burning off accumulated soot in the DPF, preventing costly damage and maintaining emissions compliance. Furthermore, the sensor plays a role in managing fuel injection timing and quantity. Precise temperature readings allow the ECU to adjust fuel delivery for improved combustion efficiency, reduced fuel consumption, and lower emissions across different operating conditions. Replacing a faulty sensor with this genuine VAG part ensures your vehicle's emission control system operates as intended. Installation of this sensor is crucial for maintaining the health of your exhaust system and ensuring your vehicle meets regulatory standards. A malfunctioning EGT sensor can lead to poor performance, increased fuel usage, and potential damage to the DPF or other emission control components.
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