Fuel injection system of the B6 engine: 1 - air filter element; 2 - air filter housing; 3 - air filter cover; 4 - throttle body; 5 - the upper part of the intake manifold; 6 - intake manifold; 7 - injection nozzle; 8 - distribution line; 9 - fuel pressure regulator; 10 - fuel supply line; 11 - fuel filter; 12 - drain pipeline; 13 - fuel supply hose to the fuel filter; 14 - throttle angle sensor; 15 - forced idle pneumatic valve; 16 - fuel quantity meter; 17 - body, additional air supply valve; 18 - fuel pump; 19 - fuel level sensor; 20 - fuel tank; 21 - adjusting screw for the amount of idle mixture.