Why heated throttle body?

The throttle valve (throttle unit (DZ and DU, respectively)) is necessary to regulate the air flow, which is necessary for preparing the fuel-air mixture (FA) entering the cylinders. During operation of the remote control, its excessive cooling occurs, resulting in interruptions in engine operation.

In order to prevent such a scenario, the manufacturer modified the throttle assembly, equipping it with heating, which is carried out using coolant. In the summer, according to many car owners, heating the diesel protection negatively affects engine performance and leads to loss of power and unstable operation of the power unit. As a result, many turn off the remote control heating for the summer, noting an improvement in engine performance and a significant increase in dynamics. However, this is all in the opinion of some motorists, but what are things really like and what could such a modification mean for the engine? Let's find out...

What is a throttle body pipe?

Throttle pipe

— the air supply system to the engine, assembled, contains several sensors: TPS (
throttle
), IAC (idle air control).

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Why turn off the throttle valve heating?

According to supporters of turning off the throttle body heating, the coolant heats the air excessively, which affects engine efficiency. The bottom line is that heated air contains less oxygen, therefore, the fuel assembly will be less productive and the combustion of the combustible mixture will be less efficient. Most of all, in their opinion, this is observed in hot weather, when the air temperature is already high. Disabling the throttle heating allows you to increase the stability of the power unit, as well as get a small increase in power in hot weather.

Cleaning methods

There are two ways to clean the throttle valve for a VAZ 2114 car:

Superficial;
Deep.

Each of them deserves separate consideration.

Surface cleaning

The easiest way that does not require virtually any knowledge in the field of car repair and disassembly. There is no need to disassemble the damper itself, because this option is preferred by almost all beginners who are just beginning to learn the joys of self-repair.

When cleaning is necessary

In addition to mileage, there are additional signs that will indicate the need to clean or replace the throttle valve:

The decrease in speed from high to low when releasing the gas pedal occurs jerkily. The revolutions may immediately drop by 300-400.
In winter, the engine has difficulty starting, and the smell of gasoline can be felt in enclosed spaces.
During startup, not all cylinders are immediately put into operation; a “triple” effect appears. While the car is moving, slight twitching is felt, especially when accelerating.

Contamination of the damper occurs due to the ingress of combustion product residues - oils, fuel, soot - onto it. As a result, a coking process occurs, which leads to jamming of parts and loss of smooth movement. Due to the narrowing of the gap, the amount of air that enters the cylinder also decreases. This, in turn, leads to a loss of engine power.

Tip: In addition to cleaning the damper itself, it will be useful to check the operation of the air flow, idle speed and throttle lift sensors.

Turn off the throttle valve heating

This activity is usually carried out in the spring-summer period; in winter, the heating of the remote control is switched back on. The implementation of the plan occurs as follows: a special fitting, clamps and a small piece of rubber hose are bought in the store. The coolant inlet and outlet hoses are disconnected and connected to each other using a special adapter fitting, bypassing the throttle assembly. To prevent anything from getting inside the coolant inlet and outlet on the throttle assembly, it is necessary to plug the holes using a hose that fits onto the corresponding fittings.

After this modification, you will be able to see for yourself whether it makes sense to turn off the throttle valve heating. If you are not satisfied with such tuning, you can easily return everything to its previous state; for this, the hoses are connected according to the old scheme.

That's all for me, write in the comments what do you think makes sense to turn off the heating of the throttle assembly and what consequences, in your opinion, this may have. If the article was useful to you and you want to say “thank you to the author,” as a thank you, you can share this article with your friends on social media. networks using the appropriate buttons located below. Thank you for your attention and see you again at VAZ Repair. Bye!

How to remove an air lock on a VAZ with electronic (e-gas)?

Since there is no throttle valve cooling system, you need to bypass this unit. Here you can also set the car up.

I hope that these three methods will help you solve the problem, and that you have found all the answers to your questions on the topic “How to get rid of an airlock?”

How to properly remove an air lock from the cooling system?

According to the law of physics, air accumulates in the highest place. In a car, the highest link in the coolant chain is the throttle body. That is why the air must be removed from there. There are several ways to get rid of an air lock.

Here is the first one. If you have a 1.6 liter engine, then:

First of all, we remove the plastic cover on the engine - unscrew the cap on the engine to fill the oil, and then pull out the entire cover. It is seated on rubber seals.
After removing this plastic screen, screw the oil cap back on to prevent dirt from getting into the crankcase.
We find the heating pipes for the throttle assembly (there are 2 of them), see the figure. Pick up any phone.
Next, unscrew the cap of the expansion tank (coolant reservoir) and cover the neck of the tank with a clean rag.
We begin to blow into the tank with liquid. We blow until all the air comes out of the hose and antifreeze flows out.
We quickly put the tube back on and tighten it with a clamp so that no air gets in.

(It is worth noting that depending on the tube that you removed, antifreeze may leak from both the tube and the fitting from which the tube was removed).

This is all clear, but what is it really like?

In fact, driving without heating the remote control is not advisable, and in winter, turning off the throttle valve can lead to freezing of the remote control. Due to high air humidity and negative temperatures, freezing of the damper, as well as channels, including idle channels, occurs.

How about summer? In the summer, heating the remote control has virtually no effect on the temperature of the air that passes through the throttle valve, since the powerful air flow (approximately 40 l/sec and 2400 l/min) simply does not have time to warm up in such a short period of time passing through the throttle assembly. In addition, the coolant temperature is regulated by the cooling system regardless of the season and ambient temperature.

If the above arguments do not seem convincing enough to you, you can personally check whether it makes sense to turn off the heating of the throttle assembly. How to do it right?

Why clean?

Due to dirt, this important part of the car may stop closing and will not open completely. And there is enough dirt under the hood: crankcase gases, oil dust, oil deposits - all of this ends up on the throttle assembly. So flushing the throttle valve on a VAZ 2114 is not done for the sake of beauty - it is necessary for normal operation of the car. There are several main signs that the unit is dirty: • The engine is unstable and does not start the first time. • Instability at idle, “floating speed”. • The car jerks when driving at low speed. • Dips occur at idle. These are signs of contamination of the throttle assembly, however, the same symptoms are also characteristic of a malfunction of the sensors that are located in the assembly, and may also indicate a malfunction of the mass air flow sensor. In a word, before you clean the throttle valve on a VAZ 2114, make sure that it is the cause of the car’s unstable behavior; in general, it is advisable to perform this operation every 30 thousand kilometers.

What is a throttle valve and where is it located?

The main purpose of the damper is to supply the optimal amount of air to the cylinders for the fuel combustion process. If this mechanism is corrected, the engine will operate stably and produce rated power; any deviations cause instability in the operation of the power unit and other systems.

In the VAZ-2114 car system, this mechanism is located between the air filter and the intake manifold. Maintenance and replacement of the damper is complicated by the fact that it is simply impossible to get close to it. It is necessary to dismantle the entire mechanism and then disassemble it.

The design of the remote control includes the following elements:

remote control position sensor;
coolant outlet pipe;
coolant supply pipe;
RXX;
ventilation and vapor recovery system tube.

The electronic throttle valve of the VAZ-2114 works according to the following principle: the valve opens in accordance with the pressing of the accelerator pedal. At the same time, the unit receives signals from various system sensors, on the basis of which it opens or closes the remote control to achieve the required power level by the engine. This regulates the supply of the optimal amount of air to the cylinders and the amount of fuel injected.

Does it make sense to remove the throttle heating on a car? Minor modification.

In this video we will remove the throttle heating on the car. I’ll tell you about the effectiveness of such a modification; is there any point in removing the throttle heating?

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SIGNS OF AIR SUCKS AND HIGH FLOW