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The ERA 551409 EGT sensor is a crucial component for modern vehicle emission control systems. It accurately measures the temperature of exhaust gases exiting the engine. This data is vital for the engine control unit (ECU) to make real-time adjustments to fuel injection and ignition timing. By maintaining optimal exhaust gas temperatures, the sensor helps to prevent damage to exhaust system components like the turbocharger and catalytic converter. ERA is known for producing reliable automotive parts. This EGT sensor is built to meet stringent quality standards, offering a dependable solution for replacing a faulty or worn-out sensor and restoring your vehicle's emission control efficiency.