This Exhaust Gas Temperature Sensor, part number 04L906088EA 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 time to initiate a DPF regeneration cycle, ensuring the filter remains clear and functions efficiently. This prevents potential performance issues and costly damage to the DPF system. Furthermore, the data from this sensor contributes to precise fuel injection control, leading to improved fuel economy and reduced emissions. A properly functioning EGT sensor is essential for maintaining the overall health and compliance of your vehicle's exhaust system, ensuring it meets environmental standards.
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