On injector cars VAZ-2110 throttledamper plays a huge role, the unit is almost failsafe. But still, it requires attention from the driver, since the quality of gasoline is not always high. With the help of a throttle unit, injection engines outperform their carburetor counterparts - significant savings in gasoline and stable operation of the injection system are ensured. But the maintenance of the valve is still necessary to carry out in a timely manner so as not to disrupt the operation of the entire injection system.
Work at idle
The principle is to fuelsupply the required amount of air to form the mixture in the correct proportion. The air flows through the filter into the throttle of the VAZ-2110. When idling, a small amount of air passes through the valve to maintain the crankshaft speed at 750 revolutions. The damper is completely closed at this time. As soon as the driver presses the accelerator pedal, the flap opens (the angle of rotation of its axis fixes the position sensor and sends a signal to the electronic control unit).
Normal operation
Air enters through a gap formed byvalve, the controller does not work. In the fuel rail is the process of mixing - gasoline is in suspension (like fog) under high pressure. Its value is constantly and regulated by means of a sensor and an overpressure valve. Already after the mixture is formed, the fuel is injected into the combustion chambers - the nozzles are opened in turn (in fact, these are electromagnetic valves). They are controlled by an electronic unit. Their work depends entirely on the readings of the sensors and the fuel card (firmware of the microcontroller control system).
Electronic gas pedal
На некоторых модификациях ВАЗ-2110 дроссельная the flap is driven by an electric motor. The essence is simple: a sensor system is installed on the pedals (most often based on a potentiometer - a variable resistor). Pressing the pedal changes the resistance, and the electronic control unit determines the position according to the signal level. Then a signal is sent to the throttle actuator, and it opens at a certain angle. Instead of rheostats, encoders are installed - sensors that fix the angular displacement of the axis. They are more accurate and reliable, but the cost is higher. In general, the reliability of the electronic damper actuator is much higher than that of a cable.
Sensor system operation
Of great importance is the air flow sensor.It allows you to estimate the amount of air that enters through the throttle unit in the fuel rail. Depending on the position of the throttle valve VAZ-2110 changes the volume of air passing through it. But the air cannot be weighed, touched, touched. Therefore, a more cunning way of estimating its quantity was invented - by heating a platinum filament.
When you turn on the ignition in the DFID threadfrom platinum (which is why sensors have a high cost - more than 2000 rubles). The electronic control unit contains the reference temperature of the thread. When air passes through the sensor tube, the thread cools down by several degrees (by blowing). The control unit records the difference and, knowing all the geometrical dimensions of the sensor, it calculates the approximate amount of air passing per unit time into the fuel rail.
When do you need to clean the damper?
Symptoms of the need to clean the throttle VAZ-2110:
- Unstable engine operation at idle.
- Delay when starting the motor.
- Extraneous sounds from the muffler.
- Increased gas mileage
- The car twitches when driving at low speed.
- Crankshaft revolutions are floating.
All these symptoms suggest that in the casesite there are deposits (they can be seen without complete disassembly). Oily dust and gases cause deposits. You can clean it yourself with the help of a special aerosol product. According to the technological map, the valve should be cleaned every 35 thousand km. run But it is better to reduce the mileage to 15-20 thousand. Km. The procedure will take a little time, but the effect of it will be a lot - the engine will work stably, reduce gas mileage and increase power.
Cleaning procedure
In most cases, surface cleaning will help if contamination is not significant. Used spray for cleaning carburetors and injectors.
The process of cleaning the throttle valve VAZ-2110 (injector) is as follows:
- Remove the corrugation from the air filter and the throttle.
- Apply the solution from the can on the valve.
- After 5-10 minutes, remove the dirt with a brush or clean cloth.
- Repeat cleaning if you are not completely rid of dirt.
To completely clean the throttle valve VAZ-2110, you need to dismantle it. When carrying out repairs, it is advisable to install a new sealing ring and gasket. Cleaning procedure:
- Disconnect the negative terminal from the battery.
- Dismantle all connections to the throttle assembly.
- Unscrew the two bolts fastening the flap. Take it off for further cleaning. Pay attention to whether the gaskets and sealing rings are damaged, in what condition they are.
- Do not damage the sensors during disassembly. Remove them carefully, trying not to destroy the case and power wires.
- Spray all surfaces of the assembly, grooves and holes with an aerosol agent. Wait until the product reaches all hard-to-reach places.
- Use a brush or cloth to wipe the case. If necessary, repeat the procedure several times. This will allow you to clean the case and internal surfaces as efficiently as possible.
В датчике расхода воздуха часто засоряется нить from platinum, dust settles on it and interferes with normal operation. It is allowed to clean the thread and the grid with an aerosol. But you can not touch your hands or foreign objects - this will lead to a malfunction of the sensor. To prevent contamination of the fuel system, replace the fuel and air filters in a timely manner. The less dust gets into the mixture, the longer the fuel system components will last - the VAZ-2110 throttle, nozzles, air flow, pressure sensors, idle speed regulator.
