For gasoline engines and for engines with fuel injection - check the power supply system are quite different. Although there is the same requirements for how the power system are diagnosed gasoline engine. The first thing to do for the diagnosis of power systems, so it is poured into the tank car for about ten liters of high-quality gasoline AI-93. You must be sure of its quality, at the gas station you can under the guise of high-quality gasoline AI-93 to fill anything. Petrol other brands try not to use it because of foreign cars (eg, Honda) and some other brands are sensors detonation shocks that occur when using less octane gasoline. When activated the sensor in the float chamber carburettor car, the solenoid valve closes the opening nozzle or sends a signal to start banning educators from the computer and the engine stops. When duty not to use the car (about a year), Besides, if it is idle to half empty petrol tank, make him a starter, likely will not succeed. It depends on what fraction of air-fuel evaporated, and they provide a combustible mixture and, accordingly, gasoline has changed its properties. This most often occurs at high temperatures. If the starter to start the car engine fails, you can try to file a gasoline manually. It is suitable for all types of engines. If there is no gasoline in the carburetor, it is necessary to fill in thin stream on top of his neck a little bit of gasoline. When the other engine components are OK, then this method will help you start the engine. Start the engine with fuel injection as you can. To do this you will need to remove the rubber hose, for example, brake booster and the intake manifold before it plesnuv little gasoline. And last, perhaps, the moment in these two engines - a piping and the gas tank. Until recently, the Japanese automotive industry was only two instances when the engine is denied due to water entering the tank, and only one case of corrosion of the pipeline where they exit from the tank, and corrosion of air leak occurred. In these cases, the water froze in the fuel tank, and caused a power output of a gasoline engine failure. But even if the water does not freeze, it would have flowed through the fine filter, with dirt and rust filter would have scored. These problems are very common. Carburetors Japanese manufacturers like domestic. Only exception-carb car Toyota Corolla (mostly with the engine 3A), it has a diffuser carburetor closes the vacuum valve, which is a cylinder when you start your car using the vacuum it reopened, and the carburetor car Honda, in which three of the diffuser and an electromagnetic valve, which is located on the main jet. If everything is in order, then when you turn on the ignition and 12V supply valve should be open. Tubes that deviate from the carburetor, and have no damages in the form of air suction from the atmosphere to work and start the engine do not affect. In general, they affect the purity of the exhaust, fuel economy, as well as the automation of various systems and engine power. If all the tubes plugged, you will have the engine "Moskvich" and not the latest release. If the engine is not hot and did not want to wind up, it must be from a container (like a bottle) splash a little gasoline into the carburetor and see some sparks. On the basis of what he saw, you can diagnose faults characteristic of the system power gasoline engine. Make a viewing window in the presence of gasoline in the float chamber. If it's warm enough and the level of gasoline in the viewing window is not visible, probably float chamber may flow fuel and, accordingly, the engine will not start. In some models, the viewing window is not (although this is rare), so you need to open up with a screwdriver choke and push the accelerator pedal abruptly, after observing flow of fuel from the accelerator pump in the diffuser. If the fuel is not there, then most likely clogged the fine filter. This filter is disposable, it should not be washed. It can replace the fine filter domestic production. An additional reason for failure of power gasoline engine - mechanical and electric gasoline pumps. In a fuel line in front of an electric gasoline pump may be placed micromesh filter conical shape. To diagnose it, you must remove the rubber hose that fits to the petrol pump from the tank. May be clogged itself strainer at the inlet of the carburetor. Also common failures with the dirt in the carburetor. Dirt gets there, if the carburetor does not use an air filter, or because of the broken valve carburetor, which is recycled exhaust gases. This can be seen on the soot on the air filter. And yet another feature of the Japanese car manufacturer is the need for "running", it serves to prevent the formation of "vapor lock", for fast flow and the same fuel pump motor cool. In the absolute majority of failures in engines with fuel injection occurs due to lack of proper pressure. This is due to filter clogging the fine cleaning of gasoline, malfunction of the fuel pump when clogged strainer, which is before the actual gasoline pump, as well as the absence of power at the gasoline pump. Due to the lack of domestic filters, working under pressure to remove water from the clogged filter, it should be boiled in kerosene, then rinse with clean gasoline in the reverse flow. Old petrol pumps are often wedge, because they operate without a lubricant, gasoline pumps are cooled and washed with petrol. Electric Fuel petrol pumps mainly located the vehicle near the fuel tank, the case (eg, Honda) under the left rear wing or in the middle of the fuel tank, in this case for its repair is necessary to remove the back seat and get to a special hatch, or unscrew the Polycom in the trunk and there to open the hatch. Fuel pumps work only when the ignition is on and the engine rotates, or starter, or idling. If the fuel pump is located in the distance, you can lightly hit with a hammer. Renovated in such a way benzonasos still jammed, but it will happen the next time the engine or even the passage of 10,000 miles - is nobody knows. When the engine is running, petrol pump is not jammed. If after three - four blows with a hammer petrol pump will not work, then it must be replaced. When the pump after the strikes began to work, very little. Pressure due to the gasoline pump (2,5 kg / cm 2), should be regulated by pressure reducing valve on the engine and the safety valve, located at the pump. As mentioned earlier, before the pump is a strainer, clogged which also leads to a violation of the pressure in the fuel line. To determine the cause not the fault of winding of the motor fuel line, if there is no pressure or jammed the fuel pump, it is necessary to start the engine when it starts and stalls, and if you try again, and each time it is put is getting worse and worse with the weakening of the fuel line from there falls upon fuel, and the subsequent scrolling by a starter amount of fuel will decrease. Then gasoline generally cease to come from the fuel tank, although it should follow the jet. This is the main cause of the problem. All fuel pumps are made by eddy and fully draining them do not have to fuel up, as is the case with the use of a centrifugal pump.
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