VAZ 2114 High Fuel Consumption at Idle • Spark plugs

Re: Fuel consumption at idle 2114 1.6 8V r/v Dynamics-109 rpm XX 1100 air consumption 12.5 kg/h fuel consumption 1.0-1.1 l/h coefficient. by lambda 1.05

2114 1.7 16V r/v 9.9/9.8 turbo g. 1bar speed XX 1200 air consumption 13.5 kg/h fuel consumption 1.2 l/hour coefficient. by lambda 1.02

so something is wrong with you!

The stock car should consume 0.7-0.9 l/hour at idle 880 rpm

Continuing the line of the “nine”, beloved by domestic car enthusiasts, the “Samara 2” or VAZ 2114 model was released. A new dashboard was installed in the car, the exterior was modernized, and the interior was improved. The car was released in 2001 and immediately received positive feedback from its owners. It turned out to be so popular that production continued until 2013. Among the advantages of the car are:

1. Attractive appearance.
2. Reliable, economical and dynamic engines.
3. Economical average fuel consumption on all modifications of the VAZ 2114.
4. Maintainability.
5. Optimized chassis.
6. Reasonable price for any of the configurations.

The cars are equipped with a range of engines with volumes of 1.5 and 1.6 liters, the second unit is offered in versions with 8 and 16 valves.

8kl engine 11183 1.6 mt 82 hp. Spark plugs

• low pressure in the fuel system due to a faulty fuel pump;
• filter contamination - fuel or air;
• problems with sensors - speed, camshaft position, oxygen supply;
• dirt in the injectors.

Ways to reduce fuel consumption of a VAZ 2114 with an injector • It is a long-known fact that the larger the radius of the wheel, the more effort must be made to turn it.

Do-it-yourself troubleshooting

Many faults from the above list can be eliminated yourself in a few minutes. It will take much more time to identify.

Diagnostics of mass air flow sensor and IAC

The mass air flow sensor and idle air control act as regulators of air supply to the combustion chamber.

Failure of these sensors will lead to an increase in fuel consumption, and a broken rod will affect the speedometer needle; it will remain motionless until the problem is fixed.

How much does a new sensor cost?

Of course, car parts are not cheap, but if necessary, they must be purchased in order for the vehicle to work properly. The sensor should be purchased only in specialized stores where there is a guarantee, and where you can actually get competent advice. This spare part costs around 350 rubles. As a rule, such options are very reliable and durable. It makes no sense to buy cheaper ones, since their characteristics are in no way inferior to those that cost 350. It’s not worth buying cheaper ones, because these are mostly Chinese parts that are short-lived and of poor quality. If you find it difficult to choose, then ask the seller which sensor is better to choose. Basically they are all similar, the only difference is the price. Please note that this part can also be purchased online. The main thing is not to be cheap, but also not to spend all your money on one spare part.

As we can see, any part of the machine becomes unusable over time, so it needs to be replaced. As for the idle speed sensor, this device also needs to be replaced from time to time for the accuracy of the indicators. Quite often, due to a faulty sensor, a car begins to have problems with the engine, the speed deteriorates, etc. With such problems, it is quite dangerous to drive a car, since there is no guarantee that the engine will work without “whims,” and on the road this is very dangerous . You shouldn’t risk your most valuable assets; it’s better to send the car in for repairs or fix it yourself. A car, like any other device, must be used carefully and repaired as needed, then it will serve for a long time and reliably.

Specifications

This is an improved model of the well-known VAZ 21099. The sedan that replaced it has become more popular than its predecessor. It features a number of positive innovations, which include a more modern assembly, economy, and the necessary comfort for the driver.

In Samara, the front optics have been modernized, the design has become streamlined and modern, and the stylish updated trunk lid attracts the attention of many consumers. The modified sedan can be equipped with electric windows, fog lights or heated seats. The on-board computer has become a classic feature for this car.

Next, we will find out which sensors affect fuel consumption.

For example, a knock sensor only prevents detonation knock when refueling a car with low-quality gasoline and commands the control unit to set a later ignition. If it’s summer and you drive on normal roads, but at the same time you notice an abnormal appetite in the fuel-injected 8-valve VAZ 2114, then it’s time to conduct a full diagnosis of the car’s condition.

Bottom line

A car with an injector and built-in computer technology can easily be tuned, which gives it a more modern look, aesthetic beauty, and more comfortable operation. The above indicators of gasoline costs according to real data and according to the technical data sheet do not have significant differences

. It all depends on the care of the car, parking location, and weather conditions.

Despite the fact that the production of this car has already ended, you can see many happy VAZ owners on the roads, which indicates its reliability, high wear resistance, economy in maintenance and fuel consumption. The plant in Togliatti, where the car was produced, has been famous for many years for the high quality of the vehicles produced, which are optimally suited to the conditions of use in our region.

What is the real gasoline consumption of VA3 2114? Symptoms of a problem

• malfunction of the oxygen supply sensor;
• low level compression;
• problems with the air flow sensor;
• late ignition, clogged catalyst.

How to avoid high fuel consumption

To reduce fuel consumption, it is necessary to remove additional elements that increase aerodynamic drag when driving. For example, a plastic trim on the leading edge of the hood or deflectors around the side windows lead to additional fuel costs (within 0.2-0.3 liters per 100 km). A negative impact is caused by low air pressure in the tires or incorrect operation of the brake mechanisms, when the pads touch the surfaces of the drums or discs when the pedal is released.

Advantages of the machine

For more than ten years, developers of modern cars have been resorting to a new type of fuel supply. Outdated carburetors have been replaced by injectors that increase engine efficiency. At the same time, they significantly reduce the flow of fuel into the tank, which significantly saves fuel consumption.

VAZ has such capabilities, which positions itself as a reliable, economical sedan modification vehicle. The fuel consumption of the VAZ 15 per 100 km is significantly less than that of other cars of a similar pricing policy.

CAUSES

An error in the operation of the oxygen sensor can be detected at a service station by going through the diagnostic procedure, or the on-board computer will give you a hint. Considering that today the cost of gasoline is quite high, it is easy to guess that increased consumption can make a noticeable hole in the family budget of an ordinary person, when every trip becomes literally golden.

Lambda probe

One of the first and most important sensors, the operation of which can affect increased gasoline consumption, is the lambda probe. It is located on the exhaust pipe, and its main task is to assess the condition of the exhaust gases. Based on the oxygen content in the exhaust, the system regulates the volume of the working mixture. Accordingly, if the sensor malfunctions, the system will not be able to accurately regulate the working mixture that needs to be supplied to the combustion chambers. This may increase consumption.

However, if the sensor breaks down, the system warns the driver about this with a “Check” light on the dashboard. You can also see the error using the on-board computer. Often this sensor breaks down due to poor quality gasoline, oil getting into the combustion chamber, or valve clamping.

8kl engine 2111 1.5 mt 77 hp

This engine was the first to be equipped with the VAZ 2114, or as it was called - “Samara-2”. Thanks to the power of 77 horsepower, the car accelerated to 100 km/h in 13 seconds, while the maximum speed reached 165 kilometers per hour. The manufacturer claims that in urban driving mode the engine consumes 8.

According to reviews from real owners, the gasoline consumption per 100 km of the VAZ during everyday use is slightly different. Usually the figure differs from the passport number in a larger direction:

• in the city - 7.5-9.5 liters;
• on the highway - 4.5-6.2 liters;
• mixed cycle - 7.3 l.

Even with aggressive driving, the car does not overcome the psychological barrier of 10 liters, which makes it an excellent choice for people who do not want to incur huge expenses on gasoline. Differences in fuel consumption figures depend on driving style and the condition of the car, in particular, the serviceability of all units and components.

A brief historical excursion for connoisseurs

The main differences in appearance are as follows: original headlights, additional brake light, new spoiler, etc. As for the “filling”, there have been many more changes:

• the europanel device is a front panel with two LCD displays, equipped with an overboard thermometer;
• convenient placement of emergency information in the center of the panel;
• optimal interior ventilation;
• steering column adjustment;
• heated seats;
• electric windows;
• folding rear seats.

Considering all of the above, the owners of the VAZ 2114 can only be envied. The ride quality is stable, the control unit is reliable, the steering wheel no longer blocks part of the dashboard and leaves enough space for the driver to sit comfortably.

If necessary, you can easily convert your hatchback into a station wagon by simply folding the rear seats. Thus, the car becomes a utility vehicle with a large body capacity. Comfort is also an undoubted advantage due to the same heated seats and thoughtful ventilation.

All this sounds great, and it would be so if not for one big drawback - the fuel consumption of the VAZ 2114. The reasons may be different, and they will be discussed further. But the fact remains: sometimes 10 or even 13 liters of gasoline are needed per 100 km, which cannot but upset car owners. Fuel consumption is actually high. Since it is necessary to protect lovers of the domestic automobile industry with all our might, we will try to understand the issue and find a way out.

How much does a new sensor cost... High voltage wires

1. Regularly replace the air and fuel filter. In this case, preference should be given to factory elements.
2. Monitor the condition of the spark plugs and replace them according to the recommendations.
3. Periodically measure the tire pressure level and monitor the condition of the brake system parts.
4. Refuel your car only at time-tested gas stations.
5. Maintain cleanliness of components and assemblies of the engine compartment.

The principle of operation of the fuel system

High fuel consumption on the VAZ 2114, then follow the instructions below. Of course, few people would want to drive such an “expensive” car and throw money away. There are not many options: go to an official service center and let them fix the shortcomings, or do it yourself, if you know a lot about it. Only in the latter case you need to be especially careful, since you can violate the warranty period, if it still exists. So, if you decide to fix everything yourself, then first you need to outline the range of sources of problems: electronic control unit (ECU), sensors, filters.

Before taking specific steps, analyze the style and manner of driving your car, brand of fuel, average speed, geographic and climatic operating conditions. It would seem like a small thing, but it can significantly increase the car’s appetite by several liters in the plus position. Drive the car into an inspection pit or overpass, let the engine cool, put on rubber gloves and begin visual diagnostics.

Pay attention to the fuel system, namely:

• Unscrew the nozzles one by one. Examine them. If you have a tester, clean it with injector fluid. Possible deposits or other foreign particles;
• Fuel pump: if there are no leaks or mechanical cracks, then the cause may be internal. You should disassemble it and clean the internal diaphragm (see the article “Signs of a fuel pump malfunction”);
• Remove and replace the gasoline filter with a new one; if there is no obvious sediment in the old one, this does not mean that it is clean. Microparticles are not visible to the human eye;
• Malfunctions in the speed sensor. At first glance, it has nothing to do with it; it may be a source of increased gasoline consumption;
• Instability in the operation of the phase sensor, which records the position of the crankshaft at certain moments of rotation;
• The oxygen sensor allows less air to pass through. The fuel system begins to starve, the mixture becomes leaner and the engine requires more ignition costs. In this case, only complete replacement, no resuscitation;
• In addition to the fuel system, we will check other components. Each part must be checked separately, so that you do not spend money on purchasing the entire set, but it turns out that the filter, for example, is to blame.
• The air filter is the second source after the fuel system. It can squeeze out a maximum of 3.0 liters/100 km. mileage

We recommend: The best ways to replace fine and coarse fuel filters on a VAZ 2109/2114/2115

Think about it, maybe it’s better to change it in time, especially since it costs a penny. And the replacement process is not complicated at all; even a schoolchild can do it without any special skills.

Spark plugs: after unscrewing them one by one, we carry out a visual inspection. An ideal candle will have a light brownish tint; all other colors are considered a malfunction. Red, black, soot, white soot are symptoms of instability in work. There are two options: either completely replacing the spark plugs or cleaning them with a household cleaner and checking the gaps between the electrode and the tip. Electrical integrity: This primarily applies to high pressure wires. Damaged ones can shoot onto the housing, thereby weakening the spark in the combustion chamber. Age and condition of the engine: perhaps the compression level is below normal or there is none at all. Check with a compression gauge and compare the data with the instructions; A simple reason is the tire pressure, which also needs to be checked with the operating instructions. As we see, there can be many reasons why the VAZ 2114 has high fuel consumption, but they can be eliminated both in a garage and in a car service center. Choose a method and go for it.