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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Passat B5 (from 1996 to 2004, the year of issue)

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Volkswagen Passat B5
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Passat B5
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Employment engine management system
Checking the fuel injection system
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A fuel highway and fuel injectors
Checking the fuel injector (4 htsilindrovy gasoline engine)
Check the supply voltage to the fuel injectors
Check spray pattern and leaks fuel injector
The basic malfunctions of the engine management system
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Check the supply voltage to the fuel injectors



Arrangement of an electric connector (1) applying a voltage to the fuel injector and the connector (2) on the fuel injector


PERFORMANCE ORDER
1. Disconnect the electrical connector of the fuel injector of the first cylinder, see. Fig. Arrangement of an electric connector (1) applying a voltage to the fuel injector and the connector (2) on the fuel injector.
2. Connect the connector contacts (1) control LED (see. Fig. Location of electrical connector (1) applying a voltage to the fuel injector and the connector (2) on the fuel injector). When cranking the engine starter LED should blink.
3. Likewise, check the power supply to the rest of the fuel injectors.

The LED does not flash in any of the cylinders

Pin connector on the electric power supply to the fuel injector


PERFORMANCE ORDER
1. Connect the control LED to pin number 1 electrical connector for the power supply to the fuel injector and the weight of the car, see. Fig. Arrangement of contacts in the electric power supply to the connector of the fuel injector.
2. Connect the contact number 2 electrical connector with the mass of the vehicle.
3. Turn the crankshaft of the engine starter. This LED should blink. Otherwise, check all the electrical power circuit of the fuel injector.

The LED is flashing only on one or more cylinders

PERFORMANCE ORDER
1. Check the electrical power supply circuit of the fuel injector and to identify and eliminate a place of breakage or short circuit it to ground.
2. Check the operation of the engine control unit.

Check resistance

Designated connect an ohmmeter to check the resistance of the fuel injector


PERFORMANCE ORDER
Consistently disconnect electric sockets from fuel atomizers and, using an ohmmeter, check the resistance of the fuel injector, which should be in the range of 12 to 17 ohm cm. Fig. Designated connect an ohmmeter to check the resistance of the fuel injector.
A warning

On the engine warm up to normal operating temperature, the resistance of the fuel injector increases by 4-6 ohms.


If the resistance of the fuel injector is not correct, replace the fuel injector.




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Check spray pattern and leaks fuel injector

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