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Audi 80/Avant (B4)since 1991-1995 releaseRepair and operation of the car |
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Audi 80/Avant + Technical specification + Engines + System of production of the fulfilled gases + Cooling system + Fuel tank and fuel pump + Air filter and airintaking channels + System of injection + Coupling + Transmission and transmission + Suspension bracket and steering + Brake system + Anti-blocking system of brakes + Wheels and tires + Body electrical system + System of ignition + Lighting + Signalling devices + Devices and auxiliary devices + Heating and ventilation + body Elements - Search of malfunctions Sequence of search of malfunctions Visual check Cause of failure — the electrical system Cause of failure — system of ignition Cause of failure — a fuel supply system + Specifications |
Sequence of search of malfunctions Whether the starter works Whether give a spark plug spark? Whether fuel comes to system of injection? To disconnect the giving fuel-supply line from the union in a motor compartment. Carefully: models to the 5-cylinder engine can have an emission of rather large amount of fuel under a high pressure. Therefore when weakening connection put a thick rag on the union. It is possible to extend the giving fuel-supply line by means of a hose and to lower its end in any capacity. Ask the assistant to turn a starter shortly.If gasoline moves, the fuel pump has to work. If is not present, read further the section Cause of failure — a fuel supply system. If gasoline moves, as a source of malfunctions there is only a system of injection. Or the fuel pump though works, but does not give the necessary pressure. (The top illustration shows check of a fuel supply system of the engine with a power of 66 kW, on the lower illustration the 6-cylinder engine is represented).
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