Engine Sensors and Switches

Engine Sensors and Switches

Modern engines rely on a network of sensors and switches to keep everything running smoothly. These components constantly send information to the engine control unit (ECU), helping it manage fuel delivery, ignition timing, airflow, and emissions. When a sensor or switch begins to fail, it can trigger a warning light on the dashboard and may lead to issues such as rough running, reduced efficiency, poor fuel economy, or difficulty starting. However, symptoms can vary depending on the specific part and system involved. Key components include crankshaft and camshaft position sensors, which help control engine timing and ensure correct operation. Air intake and pressure sensors, such as MAP sensors, measure engine load and airflow so the ECU can adjust fuelling accurately. Oxygen (lambda) sensors monitor exhaust gases to support emissions control and efficient combustion. Other important parts include temperature sensors, which help manage engine operating conditions, and oil pressure switches or level sensors, which provide warnings if lubrication levels fall outside safe limits. Vehicle speed sensors also play a role in systems such as the speedometer, cruise control, and transmission control. Because these systems are closely linked, diagnosing a fault correctly is important. A warning light does not always point to a single failed component, so proper testing is recommended before replacement. At MicksGarage, you’ll find a wide range of engine sensors and switches suitable for many makes and models, from trusted aftermarket manufacturers. Replacing a faulty sensor or switch helps restore accurate engine data and supports reliable day-to-day vehicle performance. Shop Engine Sensors And Switches Ireland