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What is the Function of Engine Sensors?

1 Answers

VanCharles

07/29/25 3:24pm

Engine sensor functions: 1. The air flow sensor measures the amount of air entering the engine and is installed on the air bypass channel; 2. The intake pressure sensor detects changes in the negative pressure of the intake manifold to determine the amount of air entering the engine and is installed on the intake manifold; 3. The engine speed and camshaft position sensor is a key sensor in the engine's centralized control system, used to measure engine speed and confirm the crankshaft position signal; 4. The throttle position sensor is installed on the throttle body and includes a linear throttle potentiometer and an idle switch. The former provides the ECU with data to control fuel injection and ignition timing, while the latter informs the ECU when the throttle is in the idle state; 5. The coolant temperature sensor is installed in the water jacket of the engine cylinder head and measures the temperature of the engine coolant; 6. The intake temperature sensor controls the mass of air entering the engine based on intake temperature and atmospheric pressure during engine operation; 7. The knock sensor detects whether knocking occurs in the engine; 8. The oxygen sensor measures the oxygen content in the exhaust gases; 9. The vehicle speed sensor measures the driving speed of the car.

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