Throttle position sensor VAZ 2110
Content
There are a lot of sensors on the VAZ 2110 and they all have their own purpose. There are several sensors responsible for idling the car and taking readings from the throttle assembly. There are only two sensors on the throttle assembly, which are responsible for the operation of the engine. Today we will talk about one of them, namely the throttle position sensor.
Sensor purpose
The sensor is designed to determine the throttle opening angle. The sensor sends the received data to the engine control unit, which processes this signal.
Resistor TPS
TPS resistance
The principle of operation of the sensor is based on the usual electrical resistance, which, when rotated around its axis, changes the resistance. The data sent to the ECU is based on resistance. This principle of operation reduces the cost of production of the sensor, but affects its durability. With this design, the working part of the sensor, that is, its tracks, wear out quickly, which leads to a loss of conductivity and, as a result, to a malfunction of the sensor.
The advantage of this sensor is its low price, but due to the rapid breakdown, it is not justified.
Contactless TPS
Contactless TPS
There is another type of sensor - non-contact. As a rule, such a sensor is much more expensive, but its durability is several times higher than that of a standard sensor.
It is recommended to buy a non-contact sensor as it has more advantages and is more durable than TPS resistor.
Symptoms of TPS malfunction
If the TPS VAZ 2110 breaks down, the following signs of its breakdown appear on the car:
- Increase in billing XX;
- Spontaneous increase in speed at start up to 2500 rpm;
- The car stops on its own when the accelerator pedal is released;
- Increased fuel consumption;
- Engine power is lost;
- Difficulty starting the engine
inspection
The sensor can be checked with a multimeter or a diagnostic scanner. Since not every motorist has a scanner, and almost everyone has a multimeter, we will give an example of diagnostics with a multimeter.
The test must be carried out with the ignition on. For diagnosis, you will need two sewing needles or pins.
- We insert the needles into the contact of the connector
- We set the hall to measure a constant voltage of 20V on a multimeter.
- We connect the probes of the multimeter to the needles.
- Readings on the device should be within almost 6 volts. If the reading is lower or completely absent, then the sensor is faulty.
- Next, you need to check the integrity of the resistor. To do this, turn the throttle by hand, the multimeter reading should drop and at full throttle should be about 4,5 volts.
If the reading jumps or disappears, then the sensor is faulty and needs to be replaced.
Price
The cost of the sensor depends on the region and the store where this part is purchased. Most often, the cost does not exceed 400 rubles.
Replacement
Replacing the sensor is quite simple. To replace, you only need a Phillips screwdriver and the desire to fix the car yourself.
- Disable Sensor
- Use a screwdriver to unscrew the two screws that hold the sensor
- Remove the sensor and install the new one in reverse order
