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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Passat B3 / B4 (c 1988 and 1996 model year)

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Volkswagen Passat B3 / B4
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Volkswagen
Passat B3 / B4
Operation of the vehicle
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The power supply system
The power supply system of petrol engines
The power supply system of the diesel engine
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Air filter
The accelerator cable (engine AAZ)
Fuel Level Sensor
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High pressure fuel pump
Checking and adjustment of the maximum engine speed (engine AAZ)
Check and adjustment of increased engine idling AAZ
Check and adjust the fuel injection timing of the fuel injection pump Engine AAZ
Fuel injectors
Solenoid valve engine stop
Elements of the control system of the diesel engine (1Z, AHU and AFN)
Ignition system
Coupling
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Solenoid valve engine stop



When you turn off the engine solenoid valve device stopping the engine shuts off the fuel. Device defective if the engine despite the presence of fuel is not observed in outbreaks of cylinders.

Check the solenoid valve stops the engine
In the following order:
when the ignition solenoid valve stops the engine shall make a click operation of the electromagnet;
click may be missing, malfunction or abuse the power circuit device. To check the power supply circuit and switch on the ignition control lamp 12 to check for voltage at the terminals of the device;
If the lamp is lit, the solenoid valve is defective and should be replaced;
If the lamp is not lit, faulty electrical circuit from the ignition switch to the solenoid valve.

Removal and installation of the electromagnetic valve engine stop
In the following order:
engine stop solenoid valve located in the rear portion of the fuel pump;
disconnect the wire from the negative terminal of the battery;
Disconnect the electrical connector from the stop valve of the engine;
remove the solenoid valve from the housing of the fuel pump 3;
Installation is made in sequence, return to removal. It is necessary to use a new O-ring.




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Elements of the control system of the diesel engine (1Z, AHU and AFN)

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