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Types of Sensors Used in Automobile Engine

Today’s modern automobiles have a variety of sensors. They built into their engine to ensure that the owner can identify and prevent possible issues before they result in breakdowns can result in expensive repairs. These Automobile Engine sensors also ensure that the vehicle is operating at its most efficient. Many owners are not even aware of the amount of sensors built into their automobiles engine and what value they add. This list is just some of the sensors and why they are important.

Automobile Engine Sensors
The car engines come in different sizes and their power.

The Mass Air Flow Sensor (MAF)

The Mass Air Flow Sensor (MAF) is a computer-controlled sensor that calculates the volume and density of the air taken in by the engine. This in turn ensures the right amount of fuel is used for optimized operating conditions. If this sensor is faulty, the car may stall and the fuel usage will be higher than necessary.

The Engine Speed Sensor

The Engine Speed Sensor is attached to the crankshaft and monitors the spinning speed of the crankshaft, which controls the fuel injection and timing of the engine.


>> How to Detect Engine Speed Sensor Problems

>> The Common Engine Problems You Should Not Ignore

Oxygen sensor

The Oxygen sensor measures the amount of unburden oxygen that is present in the exhaust pipe and will indicate if the fuel is burning rich or lean. A faulty oxygen sensor will cause the car to idle poorly and jerk as well as cause high fuel consumption.

Oxygen Sensor
Oxygen sensors are used in gasmasks.

Manifold Absolute Pressure Sensor

A Manifold Absolute Pressure Sensor, or MAP, senses the engine load. As it is mounted on the intake manifold it can measure the difference between the intake manifold pressure and outside. This is important for the engine to be able to adjust the fuel injection based on the change in pressure.

Spark Knock Sensor

A spark knock sensor ensures that the fuel is burning smoothly and not detonating (exploding erratically). Detonation can cause the head gasket to fail, piston lands to crack and rings to break, as well as possible rod bearing damage.

Fuel Temperature Sensor

The Fuel Temperature Sensor is another sensor that ensures your cars fuel consumption is at its most efficient. The colder the fuel is the more dense and the slower it burns while when the fuel is warm is burns faster. This sensor ensures that the right amount of fuel is injected to keep the vehicle running smoothly while being as efficient as possible.

Voltage Sensor

Another important sensor in the engine is the Voltage Sensor. This sensor manages the idling speed of the car and ensures the speed is increased or decreased as necessary.

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