Check the injector to allow fuel its mechanical part in the "closed" position. The transmittance of gasoline can be caused by one injector seal (for motors with "Central injection"). To check, remove the nozzle cover and turn on the ignition.
Peremknite contacts "FP" and "+In" on Board diagnostic connector, the fuel pump should earn. Take a flashlight and watch for some time for the injector. If the throttle valve is dripping fuel, then failure of the sealing ring. Replace them.
Inspect the temperature sensor of the engine coolant (ТНW). Fuel consumption is calculated by the car computer on the basis of his testimony. If the sensor indicates the temperature is lower than it really is, fuel consumption will naturally increase. The sensor can be wrong due to faulty thermostat, air lock in the cooling system, breakage of the radiator. Check and eliminate the causes of these faults.
Adjust position sensor throttle, using a multimeter and a manual for your car. If it was originally billed incorrectly, it can lead to high idle speed, incorrect corner of an advancing of ignition and incorrect fuel / air mixture.
Check oxygen sensor (Oxygen Sensor), or rather the integrity of the system air supply. If it is damaged, then the sensor sees the extra air as a lean mixture, and the "automatic" adds the fuel.
Identify the presence of suction of excess air with an aerosol can of lighter fluid. Start the engine, direct the spray of aerosol into the possible location of damage in the "ripple". If such a leak is, the engine speed will increase.
Remove and inspect the spark plugs. Black soot on them indicates that the fuel mixture run rich, which leads to increased consumption of gasoline. A frequent reason is a dirty air filter. Change it.
Inspect the fuel line of the car, if the spark plugs are bright Nagar. This means that the fuel system is low pressure, the result is a reduction in engine power. The reason for low pressure may be wear on the fuel pump, a clogged filter or mesh. Eliminate them. To perform more complex work of adjusting fuel injection system motorists with little experience it is better to contact the service center.
Advice 2 : How to reduce fuel consumption VAZ
Consumption of fuel is one of the most important characteristics of the vehicle in the conditions of modern exploitation. Any sensible person want reasonable economy. How to achieve it? Here are some simple tips.
Check the ignition. Remember that after ignition, the incorrect distance between the electrodes and uneven work is the candle intermittently increases the consumption of fuel by a few percent. Let this figure will seem insignificant, but if you to optimize the ignition, it can save you up to 10% fuel.
Follow the temperature and condition of the engine. If the coolant temperature is lower than recommended by the manufacturer, the consumption of fuel increases by 10%, but much worse in this regard, the drive not the engine is warm, which "eats away" at you to 20% fuel.Please note that the wear on the cylinders and pistons of the engine decreases compression, but this in turn also leads to a significant increase in the appetite of your car: every missing unit of compression will cost you 10% of fuel. Hence the rule: how should warm up the engine and keep him,if you want to save.
Place your order. The more you carry, the more fuel it requires. You should not drive with a year's supply of canned food in case an emergency trip to the country, in the trunk and the car should be only the Essentials: spare tire, Jack, first aid kit, fire extinguisher, set of the most essential wrenches. Remember that every 100 pounds of cargo will require in the medium to 10% of gasoline in excess of. Perfect order will allow you to save up to 30% of fuel, which before harvest was spent in vain.
In time to change all consumables. If you do not change on time air filters or use the filter elements of the wrong type, it will provoke the flow of additional 5% -10% gasoline, and about the importance of maintaining order at the spark plugs we said in step 1.
Fill the right fuel. If you're driving on gasoline, the octane rating will be lower than that prescribed by the manufacturer of your vehicle, it may reduce the amount of your check at a gas station by some amount, but the consumption of this fuel will be above normal to 50% off! True: the avaricious pays twice.
Watch your driving style. Perhaps this is the most important thing that you can do to reduce the consumption of fuel. The less you disturb the gas pedal while driving, the less your car uses fuel. We do not encourage you to drive at turtle speed, just try to keep it a constant value as long as possible. Does not accelerate hurl, then do not use aggressive, sudden braking, but at the same time is not worth to brake before every turn, otherwise then your engine will have to spend an additional fuel for climbing a hill or acceleration to normal speed.
Advice 3 : How to adjust idle
Before starting to adjust the idle speed of the engine, it is necessary to verify the accuracy of the exposed valve clearances timing, clean the air filter element in the health of candles in the infallibility of the ignition timing and fully open the valve of enrichment of the mixture fuel.
You will need
- - screwdriver,
- devices to adjust the XX.
The need to regulate the idle speed of the engine occurs in the cases of unstable operation of the motor or a sudden stop of the engine during the gear shift, or waiting for an allowing signal of the traffic light, or in other similar circumstances.
When you use instrumentation to control the idle of the engine the ignition is switched off, and the ends of their wires connected to the points indicated in the routing or the instructions for use. Then is the start of the motor and screw of quantity of fuel mixture on the tachometer frequency torque is communicated to 800 + 50 rpm.
In the next step the screw of the mixture supply is regulated by the CO2 content in the exhaust gases, this parameter should not exceed three percent.
Motorists are having a great experience, I prefer to adjust the idle rpm of the engine, relying on their own ears. Alternately rotating the screws; quantity of the mixture (reducing the speed) and quality mix (maximize torque). Such steps are repeated until then, until the motor will not achieve the smooth rumble when operating in any mode (including XX).