- 1 - throttle angle sensor
- 2 - switch TSZ-H
- 3 - throttle valve
- 4 - VEZ control unit
- 5 - ignition distributor
- 6 - ignition coil
- 7 - control unit of the system for stabilizing the engine shaft speed at idle and the forced idle switch
Installation location: under the instrument panel above the relay board. In position 12.
- 8 - screw for adjusting the idle speed of the engine shaft
- 9 - click pressure switch
- 10 - forced idle switch valve
- 11 - CO content adjustment screw
- 12 - air filter
- 13 - fuel dispenser
- 14 - control valve of the intake air heating system
- 15 - the control valve of the system for stabilizing the engine shaft speed at idle
- 16 - temperature sensor and thermal relay with time delay
- 17 - engine idling warm-up regulator
- 18 - valve nozzle
- 19 - crankcase ventilation system
- 20 - starting fuel valve
The K-Jetronic injection system is a system with mechanical continuous injection of gasoline into the intake manifold in front of the intake valves.
Fuel is sucked from the fuel tank by the booster pump and the main fuel pump located in it, and is fed through the fuel accumulator and filter to the dispenser. The engine draws in air through the intake pipe, the amount of which is determined by the air mass meter. The dispenser in accordance with the measured air flow distributes portions of fuel through valve injectors to individual cylinders. Additional transducers and sensors ensure the correct measurement of injected fuel doses even in extreme temperatures and driving situations.
The fuel accumulator also retains fuel by pressure for a long time after the engine has been switched off. This prevents the formation of vapor locks and improves starting qualities of a hot engine.
The fuel pump relay energizes the fuel pump and the engine idle warmup controller. The relay blocks the supply of current to the fuel pump when the ignition is turned off and when there are no ignition pulses (engine stopped and ignition on). In addition, the relay blocks the supply of current to the fuel pump when the engine crankshaft exceeds the maximum allowable speed.
The fuel start valve, when starting a cold engine, injects additional fuel into the intake manifold to make starting easier.
The time-delay thermostat controls the fuel injection timing by the start valve.
The pressure regulator in the system maintains a pressure in the range of approximately 4.7-5.4 bar.
The engine idle warm-up regulator enriches the fuel-air mixture during the warm-up process.
The electrical control unit controls the valves for the forced idle switch and the idle speed stabilization system.
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