At check of electronic system of injection of fuel act as follows:
Check reliability of connection of electric sockets. Violation of electric connection brings in the socket to failures in work of electronic system of injection of fuel.
Check a condition and degree of a zaryazhennost of the storage battery because the control unit and sensors cannot work with the engine (PCM) as appropriate at a low voltage of a food.
Check a condition of a filtering element of the air filter. At its pollution the amount of the air arriving in cylinders of the engine therefore engine capacity will decrease decreases and fuel consumption will increase.
Check operation of the fuel pump. If the fuel pump does not work, check serviceability of a safety lock in a power-supply circuit of the fuel pump. If the safety lock is serviceable, and the fuel pump does not work, check a power-supply circuit of the fuel pump.
Check the vacuum hoses connected to an inlet collector on absence of damages, defects and unreliability of their connection.
Remove an air inlet branch pipe from throttle knot and check a condition in throttle knot on absence of deposits of soot and other pollution, especially round a butterfly valve. In the presence of pollution check systems of compulsory ventilation of a case (PCV) and a retsirkulyatsiya of the fulfilled gases (EGR).
At operation of the engine as the stethoscope which has been serially put to each nozzle, check their working capacity. If clicks are audible, means,
electric chains
of management of nozzles are serviceable, however it is necessary to mean that internal pollution can break work of nozzles. In this case clean or replace nozzles.
In case the clicks published at work of a nozzle are not audible, disconnect the electric socket and measure resistance of a nozzle. If resistance of a nozzle differs from demanded, replace it.
If the nozzle does not work, but its resistance is in norm limits, check serviceability of the control unit the engine (PCM) and an electric power-supply circuit of a nozzle.