What are the sensors on a car?

1 Answers
McRose
07/25/25 4:56pm
There are oxygen sensors, wheel speed sensors, coolant temperature sensors, electronic throttle pedal position sensors, intake pressure sensors, etc. on a car. Below is a partial introduction to car sensors: 1. Oxygen sensor: When the oxygen sensor fails, the ECU cannot obtain this information and does not know whether the amount of gasoline injected is correct. 2. Wheel speed sensor: It mainly collects the car's speed to determine if there are signs of skidding. Once the sensor is damaged, the ABS will fail. 3. Coolant temperature sensor: When the coolant temperature sensor fails, it often shows the temperature signal of a hot car when starting a cold car, and the ECU cannot get the correct signal. 4. Electronic throttle pedal position sensor: When the sensor fails, the ECU cannot measure the throttle position signal, and even situations where the engine cannot accelerate may occur. 5. Intake pressure sensor: As the name suggests, the intake pressure sensor senses a series of resistance and pressure changes with different engine speed loads, converts them into voltage signals, and provides them to the ECU to correct the fuel injection amount and ignition timing angle.
Was this review help?
1
0
Share
More Forum Discussions

How to Repair Scratches on Car Windshields?

To repair scratches on a car windshield, follow these steps: 1. Clean and wipe the area around the scratch; 2. Use tape to outline the scratch and define the repair area; 3. Use a grinding pad to remove the scratch and then polish the glass with polishing paste; 4. Apply windshield repair solution along the scratch and let it slowly penetrate the crack; 5. Apply a small amount of toothpaste to the scratch, wipe it gently with a soft cloth, and rinse with water. Methods to maintain your car windshield include: 1. Use special or suitable wiper blades and replace them in time; 2. Keep the windshield clean; 3. Use automotive-specific glass cleaner.
7
0
Share

What Causes Lack of Power in China VI Vehicles?

China VI vehicles lack power due to engine blockage. The following are relevant introductions about the engine: 1. Concept: An engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. For example, an internal combustion engine typically converts chemical energy into mechanical energy. The engine is suitable for both power generation devices and the entire machine including the power device. 2. Precautions: Regularly check the engine compartment's oil, brake fluid, and antifreeze to see if the fluids are sufficient, deteriorated, or have reached the replacement cycle. These fluids are like the blood of your car. Once they reach the replacement cycle, they must be replaced to ensure smooth fluid circulation.
14
4
Share

How many liters of engine oil does the Yaris L need?

The Yaris L requires 3.3 liters of engine oil. Engine oil, also known as engine lubricant, serves the following functions: 1. Lubrication and friction reduction; 2. Auxiliary cooling; 3. Sealing and leak prevention; 4. Rust and corrosion protection; 5. Shock absorption and cushioning. Taking the 2021 Yaris L as an example, it is a 5-door, 5-seater hatchback with the following dimensions: length 4160mm, width 1700mm, height 1495mm, wheelbase 2550mm, and a fuel tank capacity of 42 liters. The 2021 Yaris L is equipped with a 1.5L naturally aspirated engine, delivering a maximum horsepower of 112 PS and a maximum power output of 82 kW.
16
2
Share

What does the mode button on a car air conditioner mean?

The mode button on a car air conditioner is used to switch the air outlet mode of the car air conditioner. The function of the car air conditioner is to provide cooling or heating, making it a comfort feature. Equipping a car with an air conditioner enhances comfort during driving or riding. The heating principle of a car air conditioner is quite simple: when the heating function is turned on, the high-temperature coolant from the engine flows through the heater core, and the air blown by the blower passes over the heater core, allowing warm air to be blown out from the air conditioner vents. Other letters on the car air conditioner and their meanings: 1. The AC button is the switch for the air conditioner compressor; 2. When the MAX function is activated, the car's air conditioner operates at full capacity with the fan at maximum speed; 3. FRONT is the front window defrost switch; 4. REAR is the rear window defrost switch.
14
3
Share

What are China III and China V vehicles?

China III and China V vehicles refer to the vehicle emission standards. The methods to check the vehicle emission standards are: 1. Check the motor vehicle conformity certificate; 2. Look for the vehicle packing list; 3. Log in to the website of the Motor Vehicle Exhaust Pollution Supervision and Management; 4. Check the back of the environmental protection label on the car's front windshield; 5. Take the vehicle registration form to the vehicle management office for inquiry. China III and China V vehicles refer to the national motor vehicle pollutant emission standards, which mainly include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. The pollutant emission standards are achieved by filtering through the active layer of the catalytic converter, secondary air injection, and exhaust gas recirculation system technology with cooling devices, controlling and reducing vehicle emission pollutants to meet the standards below the specified values.
2
4
Share

What is the role of the blower in a car air conditioning system?

The function of the car blower is to blow the cold air from the air conditioning evaporator or the hot air from the heater core into the vehicle. Additional information: 1. The external circulation uses the natural outside air temperature, but it will be slightly higher because the air intake for the external circulation is generally located between the lower edge of the windshield and the engine compartment, which introduces some of the engine compartment's heat. 2. The internal circulation blows air at the interior temperature of the vehicle. If a higher temperature is selected, the heat from the engine's coolant is transferred through the heater core in the air conditioning system, and the temperature of the air is adjusted by the opening angle of the partition between the heated air and the natural air.
12
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.