Where is the fuel pump on the VAZ 2107 injector?

check the negative sign on the fuel pump, if all positives are present. “Minus” is supplied through a black wire, the tip of which is screwed with a self-tapping screw in the trunk at the bottom right. Check there.

Hello. Today we looked from all sides in the trunk on the bottom right and still couldn’t figure out where the screw with the black wire was. Please tell me more specifically where to look? VAZ 07 engineer The fuel pump also stopped working. After the trip we stopped, a couple of hours later - whack-whack. When the ignition is turned on, the fuel pump relay is activated, the controller counts down the time for pumping, but there is no sound of the pump running. The fuses under the glove compartment are intact.

If the car engine does not start, then various factors can be the reasons for such consequences. One of these factors may be a gas pump, the main purpose of which is to pump gasoline into the engine from the gas tank. The VAZ 2107 has an injector and a fuel pump that is much more reliable than on carburetor cars. Despite this, even on fuel-injected cars the fuel pump can fail.

What is the device in question?

The fuel pump on the VAZ 2107 injector is presented in the form of an electric motor with a pump, which pumps gasoline from the tank.

The pump design has an electric motor that is powered from a 12V vehicle network. The design of the electric motor consists of a rotor, brushes and a commutator, which are constantly in gasoline. Many will think that such an injector power system for the VAZ-2107 car is quite dangerous, but not everything is so simple.

Spark and gasoline are a dangerous compound that can lead not only to fire, but also to explosion. This would happen, because sparking occurs in the electric motor of the gasoline pump, if not for the fact that gasoline belongs to the category of liquids that do not conduct electric current. In addition, gasoline does not burn if there is no air, and the fuel circuit is exclusively closed. Thus, the design of an electric fuel pump on a VAZ 2107 car is presented.

Car owners find out where the VAZ 2107 injector fuel pump is located only when there is a suspicion that it is faulty. On carburetor sevens, this device is located in the engine compartment near the engine. Many may think that this device is located there on injection sevens, but no. The device is located directly in the car’s gas tank, which simplifies the fuel pumping system. If you open the trunk and lift the carpet, you can see its outlet pipes. This arrangement of the device in question simplified the process of pumping fuel, but thereby complicated access and replacement of the product when it fails.

What is a fuel pump and what is it for?

So, the first thing I want to talk about is what a fuel pump is
and what it is intended for.
As you can already understand from the name, the gas pump comes from two words: gasoline and pump, that is, it is a pump that pumps gasoline, everything seems to be clear here, and there is nothing complicated about it. In the fuel system, the fuel pump
- if compared with the human body, can be called a heart, since our heart is also a kind of pump or pump that pumps blood, providing the body with everything vital. Life is impossible without a heart (fuel pump), and this also applies to a car with a non-working gas pump. The car turns into a static pile of metal that is incapable of anything.

Electric fuel pump device

injection pump

ordinary and conditionally can be divided into two parts:

The most important thing is its structure itself. The fuel pump in the VAZ 2107 is a replacement. The fuel pump fuse (injector) is also clogged. Testing and replacement of the VAZ injector fuel pump, replacement of the VAZ 2110 fuel pump. The electric fuel pump itself is hermetically sealed to protect against the ingress of fuel. The fuel enters the pump through the filter and the intake hole and is supplied to the power system through the outlet hole (sealed from the electric motor).

Here is such a scheme you can find. I would like to point out that it does not happen that the rotor of the engine spins in water and, moreover, in gasoline. Return to contents Description of work. The location of the VAZ 2110 injector fuel pump is in the gas tank located under the bottom of the car, in the area of the rear seat. Firstly, a spark appears on the collector when the engine is running. You yourself realize that this will lead to a fire. Replacing a VAZ 2107 fuel pump: photos and videos. Checking and replacing the VAZ 2110 fuel pump can lead to overheating of the VAZ-2110 injector fuel pump. Secondly, rotation of the rotor in water is so difficult that gaining speed and developing pressure is simply out of the question.

Signs of breakdown

There are several situations in which the pump or its components can be at fault. This will definitely have to be checked. Otherwise, you can spend a lot of money buying and installing a new fuel pump, but in the end it turns out that the problem is completely different.

The engine will not start. This is not a clear sign of problems with the pump, but still. Therefore, first check the condition of the spark plugs, the presence of a spark, and the absence of traces of oil on them. Also check the electronic control unit.
Pressure inside the fuel system. If the pump is operating normally, it will create a pressure of 3.2 bar. Depending on the type of engine in your VAZ 2114, the characteristics may differ slightly: For a 1.5-liter engine, the optimal values are 285-325 kPa;
For a 1.6-liter engine, these characteristics in optimal operating mode will range from 375 to 390 kPa.

There is no signal that is not sent to the pump. This happens when you turn the ignition key. During normal operation, the pump begins to vibrate slightly when turning the key. If this does not happen, be sure to check the wiring.

Troubles the power unit. This is also not an ideal sign of a fuel pump failure. But you still have to check. It is likely that the culprit in this situation will be the pump.

The engine jerks. Moreover, this happens at low speeds or even at start. There are two possible reasons for the situation - a breakdown of the pump itself or a problem with the fuel pump grid, which will have to be replaced.

New and old coarse filter

Many people purchase the entire fuel module assembly at once, which includes a filter, sensor, float, intake chamber and the pump itself. Such a purchase will cost approximately 3,000 rubles. It is much more profitable and practical to buy a separate pump, which costs up to 1000 rubles. This is due to the fact that when the pump fails, the remaining elements almost always remain intact and are fully suitable for further use.

Strange crap found. Replacing the fuel pump VAZ 2107

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check the serviceability of the fuel pump using the MTL-2 pressure gauge; this is the most correct way. You can somewhat roughly estimate the pressure using air pressure gauges to check tire pressure. On the bottom side of the fuel pump there is a neat former VAZ 2107 from 2004. Color 2107 injector. To do this, screw a rubber hose to the sensor and connect it to the fuel system.

The pressure the VAZ 2107
injector fuel pump when the ignition is on should be 4.0 atmospheres, and when the ignition is running 2.8-3.2.
Replacing the fuel pump mesh on the injector with your own. In reality, the pump pressure is different and was slightly less, but this may be an error in the pressure gauge. The carburetor pump is checked by setting the camshaft position by cranking the engine so as to ensure free movement of the pump foot. The hose is unscrewed from the carburetor or filter and the presence of fuel supply is determined by pressing the foot.

Where is the fuel pump relay located on a VAZ 2114

This is what I have

I get into the car and the injector won’t start! I immediately went to the store and bought 2 relays. I changed it, it started on the on-board vehicle, it showed a break in the main circuit of the non-pump, while I was driving I cleared the errors, turned it off, started the injector, pumped it up, and the ignition was dead, I went back there again, changed the one top relay, started to start, it started making a crackling noise, as if the battery had run out a little, it started up with a bang. The on-board engine did not show any errors, but the injector on the dashboard was on. What to do, what to watch?

1 - fuel pump relay 2 - main relay 3 - fan relay f1 - fuel pump fuse VAZ 2114, VAZ 2115 f2 - main relay circuit fuses.

Thoughts: if the pump is pumping, then there is ground on the solenoid relay or a break in the ignition-starter circuit, I got home, tried to start it, silence, closed it, went home at night, nothing visible and eager to sleep.

Selecting and replacing the fuel pump

Russian car owners prefer BOSH fuel pumps. You should only buy a new pump in specialized stores. The original product must be packaged in thick plastic film filled with special preservative oil. At the same time, a branded BOSH pump cannot cost less than 2 thousand rubles.

To replace the electric fuel pump on a VAZ 2114/2115 you will need:

screwdriver with Phillips bit;
thin slotted screwdriver;
key or head 7;
key to 10;
key to 17.

The sequence of actions is as follows:

Using a 10mm wrench, remove the negative terminal from the battery.
Open the gas tank cap to reduce the pressure in it.
Remove the rear seat cushion and peel back the carpet and sound insulation.
The fuel module hatch is located under the rear seat
Using a screwdriver, unscrew the two screws securing the fuel module hatch and remove it.
Disconnect the power connector.
Read also: VAZ-2107 throttle sensor, injector: principle of operation, device, signs of malfunction, replacement
Disconnecting the electrical connector from the fuel module
Using a 17mm wrench, unscrew the nuts on the fuel pipes. We disconnect the tubes from the fittings and move them apart.
Using a 17 wrench, unscrew the nuts on the fuel pipes
Using a 7 socket, unscrew the eight nuts securing the fuel module cover.
Using a socket 7, unscrew the eight nuts securing the module cover
Remove the pressure ring and remove the fuel module.
Removing the fuel module from the gas tank
Use a thin slotted screwdriver to disconnect the coarse fuel filter.
Using the same screwdriver, remove the retaining rings on the glass guides.
Using a screwdriver, remove the retaining rings from the guides
Disconnect the fuel pipes from the cap fittings.
Fuel pipes will be easier to disconnect if they are heated
Disconnect the electrical connector.
Remove the glass from the guides.
After disconnecting the tubes and wires, remove the glass from the guides
Using a slotted screwdriver, move the latches securing the electric fuel pump to the sides and remove it.
To remove the fuel pump, you need to move the latches apart
Install a new pump.
Repeat all operations in reverse order.

We recommend: Checking and replacing the clutch on a VAZ 2107

If, when disassembling the fuel module, it is discovered that the coarse filter is clogged, it should be replaced. The fuel level sensor with a float must also be replaced if the readings on the front panel do not correspond to reality.

Thus, diagnosing and replacing the fuel pump of a VAZ 2114/2115 car is quite simple. And in order for the pump to serve for a long time, always refuel only with high-quality gasoline.

How to check the fuel supply system

First, let's look under the hood. A plastic protective panel is installed on top of the engines. It is secured with two bolts; to unscrew them, you will need a 10mm socket wrench. The bolts are hidden by plugs, they can be removed with a simple screwdriver.

Removing the panel reveals the insides of the heart of the BMW E39 engine. On the radiator side of the engine we are looking for a protective cap. Underneath there is a device that works on the “nipple” principle, that is, it freely allows fuel to flow in only one direction. This is a regulator for the supply of gasoline to the engine.

Important! The fuel system should be checked in a well-ventilated area or outside. Fumes from fuel are toxic and poisonous

In addition, gasoline is a flammable substance, do not smoke near the car! A fire extinguisher should be at hand.

If the car is equipped with an autostart system, then you can check the operation of the fuel pump alone, otherwise you will have to look for an assistant. The difficulty is that you have to simultaneously turn the starter and press the nipple under the cap. If the pump is working properly, then when you turn on the ignition, gasoline should spray out from under the nipple. If this does not happen, then there are three possible reasons.

The relay that controls the pump is faulty.
An open circuit in the fuel pump power supply circuit.
The pump itself has failed.

Causes of wear

Replacing the electric fuel pump VAZ 2110

Often, fuel pumps are replaced when they deteriorate due to the use of low-quality fuel, especially for electric fuel pumps installed in cars equipped with injection engines. Whatever fuel pump you choose, you need to monitor the cleanliness of the fuel, since its service life depends on it. Many people do not fully understand why a fuel pump becomes unusable. There are actually several versions:

Due to low fuel level in the gas tank. Some experts argue that to maintain the tone of the pump, the tank must always be full. They also claim that the pump is cooled through the housing via fuel. According to the same version, a low fuel level greatly heats the pump windings, which subsequently burns out.
The second version is to use low-octane gasoline.
Version concerning additives contained in gasoline. Somehow the additives affect the internal parts of the pump, which is why it fails.
The latest version is the accumulation of dirt, sediment in the tank and other blockages that end up in the fuel tank. This can happen while refueling at questionable gas stations.

It is impossible to quickly and immediately determine if a fuel pump is broken, but there are important signs that can tell you what to take into account first.

The first thing to note is endogenous and exogenous damage. In the first situation, the operation of the gear and roller parts of the hydraulic supercharger stops. Exogenous damage includes a loud sound when the fuel pump operates and a decrease in engine power.
Most design engineers strongly advise against driving with a red flashing light indicating an empty gas tank, especially on hot days. Everything can be explained by the melting of the parts on which the brushes are attached. As a result, these brushes do not reach the commutator.
The gasoline pump can also be damaged when low-quality gasoline containing an admixture of solid particles is constantly poured into the tank. Based on the strong sound of the pump, you can understand that these solid particles are blocking the valve of the VAZ main fuel filter.

Any gasoline pump does not like the presence of moisture in gasoline. In winter, ice flakes can scratch the surface, and in summer, the density of the fuel and its lubricity decreases.

Note! In frequent cases, the fuel pump overheats due to short-term or systematic contact failures.

Causes of fuel pump malfunctions include the cessation of engine operation after the car falls into a deep hole on the road. In this situation, the emergency inertia switch is activated, through which power is supplied to the fuel pump.
The functioning of the fuel pump may be disrupted due to malfunctions in the ventilation of the gas tank, as well as fuel vapor recovery systems. If there is no contact between the gas tank and the air, a vacuum will form in the gas tank, which prevents the gas pump from taking gasoline. When uncorking the tank, there may be a loud draw of air into the fuel tank.

Note! In order to get to the service station without problems, it is not recommended to tighten the filler tank cap all the way.