Cars are complicated machines. From mechanical components to consumables, a vehicle is made up of crucial components that work in unison to efficiently perform. Few such crucial components are car sensors that intelligently work in order to keep your vehicle running well. Here are 5 major car sensors and everything you need to know about them.
Oxygen Sensor
The efficient functioning of your engine depends on oxygen intake. But too much or too little of it can cause problems with your engine. This is where the Oxygen Sensor comes in. Generally located near the exhaust manifold, the O2 or oxygen sensor measures the oxygen level in your exhaust and compares it to the oxygen in the air around your car. This information is then used to determine whether your engine is running a rich fuel ratio or a lean one. The engine computer then uses this information to elicit emission controls and fuel metering strategy. If your O2 sensor goes off, your vehicle can create excess pollution or performance issues.
The Mass airflow sensor or MAF is one of the most crucial sensors used in automobiles. The MAF sensor is located near the air filter and monitors how much air is flowing into the engine. If by a fault the working of this sensor fails, then you will notice that your vehicle will idle/stall or completely stop. Moreover, the use of petrol would be higher than usual. Moreover, when your MAF sensor fails, the check engine light will surely pop up.
Another important sensor in your vehicle, the engine speed sensor is connected to the crankshaft. The primary function of the engine speed sensor is to monitor the rotating speed of the crankshaft so that the engine timing and fuel injection can be duly controlled. If your engine speed sensor goes bad, you may have problems with the cruise control or a speedometer.
Manifold Absolute Pressure (MAP) Sensor
Dubbed as the MAP sensor, the primary function of this sensor is to monitor the instantaneous manifold pressure information. This information is then used by the engine’s computer to optimize fuel ratios for best performance, making it one of the most crucial car sensors.
Coolant Temperature Sensor
Probably one of the most significant sensors of your vehicle the Coolant Temperature Sensor (CTS) monitors the temperature of your engine’s coolant. The information is then used to regulate the systems employed in keeping your engine cool. These include components like the cooling fan etc. If this sensor malfunctions, your engine will overheat, which can cause severe long term damage.
So these were the 5 most important sensors onboard your vehicle. If you feel any of your major sensors is malfunctioning, make sure to replace faulty sensors from the GoMechanic Spares website, where you can be assured of genuine spares every time.
So what are the important sensors that are indispensable in the car? The following are the eight key sensors of the car: air flow sensor, intake air temperature sensor, throttle position sensor, water temperature sensor, camshaft position sensor, crank position sensor, knock sensor and oxygen sensor.
The engine sensor control system is the core of the entire automotive sensor. It contains many types, such as temperature sensors, pressure sensors, position and speed sensors, flow sensors, oxygen sensors, and knock sensors.
A sensor is a device that detects the change in the environment and responds to some output on the other system. A sensor converts a physical phenomenon into a measurable analog voltage (or sometimes a digital signal) converted into a human-readable display or transmitted for reading or further processing.
Just like the brain, the engine control unit (ECU) receives signals from various sensors in the car's system. It is responsible for multiple engine functions. It makes sense of the signals and uses such information to adjust engine settings to make sure the engine is at its most optimized performance.
Modern vehicles with V-6 or V-8 engines could have as many as four O2 sensors — one located in each cylinder bank and one after each catalytic converter. If either the oxygen sensor in the cylinder block or the one for the catalytic converter fails, your vehicle could experience serious engine problems.
Unauthorized entry, vibrations, and impact can trigger car alarms. Car alarms are subject to false alerts due to a faulty key fob, a defective hood latch sensor, and a malfunctioning battery, among others.
A typical high-end modern vehicle is mounted with well over 100 sensors of various types. These sensors measure wheel speed, the physical position of components and the pressure, temperature and levels of the vehicle's fluids and gases.
Will a bad O2 sensor cause rough idle and loss of engine power? You bet. Moreover, you may also notice poor acceleration, engine misfires, and even stalling. Bad oxygen sensors disrupt all kinds of essential engine functions, including engine timing, combustion intervals, and air-fuel ratio.
The crankshaft sensor supplies information on the crankshaft's current position, which the engine management system can then use to calculate rpm. These values make it possible to determine the most economical fuel injection and ignition timing for a vehicle.
The engine speed sensor is the most important sensor of the engine management system. In addition to the speed, this sensor, together with the trigger wheel determines the crankshaft position. In addition to a crankshaft position sensor, a camshaft phase sensor can also be used.
Temperature sensors are the most popular and common types of sensors in various devices. Examples are computers, air conditioning systems, mobile phones, and others. They measure changes in the temperature.
The O2 sensor is responsible for measuring how much unburned oxygen is in the exhaust. It communicates with your vehicle's electronic control unit (ECU) to help figure out what the right air-to-fuel ratio should be for the best engine performance.
Today, a typical car has dozens or even hundreds of sensors that cover every aspect of its operation and environment. Some of the common sensors you may have heard of are oxygen sensors, mass air flow sensors, coolant temperature sensors, blind spot detection system warning sensors, parking aid sensors, etc.
Your car tells him where the camshaft and crankshaft positions are: The number of firings or which cylinders to fire are sent to the ECU. These sensors may vary based on the age of the vehicle. Newer cars that are updated to the latest model should each have four camshaft position sensors, one for each camshaft.
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