Passat B2 (1981-1988)
Passat B3 (1988-1993)
Passat B4 (1988-1996)
Passat B5 (1996-2005)
Passat B6 (2005-2010)
Fuel injection «Mono-Jetronic» car Volkswagen Passat B4
Central fuel injection system «MONO-JETRONIC»
Vehicles with engine «RP» release until January 1993 are equipped with a central (single point) fuel injection (SCW) «Mono-Jetronic» Bosch company. This system (pic. 2-50) It is a...
Vehicles with engine «RP» release until January 1993 are equipped with a central (single point) fuel injection (SCW) «Mono-Jetronic» Bosch company. This system (pic. 2-50) It is a...
Checking and adjusting the fuel injection system «MONO-JETRONIC»
So that when checking and adjusting the injection system «Mono-Jetronic» not to get injured and not to disable the components of the system, the following rules must be observed....
So that when checking and adjusting the injection system «Mono-Jetronic» not to get injured and not to disable the components of the system, the following rules must be observed....
Fuel pump
To remove, disconnect the wires from the battery. Raise the luggage compartment carpet and remove the inspection hatch in the floor of the body. Disconnect electrical connectors....
To remove, disconnect the wires from the battery. Raise the luggage compartment carpet and remove the inspection hatch in the floor of the body. Disconnect electrical connectors....
System self-diagnosis
Electronic NSC «Mono-Jetronic» has a self-diagnosis system. The injection computer contains a read-only memory (ROM), which performs the detection, storage and indication of some...
Electronic NSC «Mono-Jetronic» has a self-diagnosis system. The injection computer contains a read-only memory (ROM), which performs the detection, storage and indication of some...
Checking the electrical circuits of the system
Checking the circuits and devices of the injection system can be done through the conclusions (pic. 2-71) ECU connector as shown in Table 2-11. The check is carried out with a...
Checking the circuits and devices of the injection system can be done through the conclusions (pic. 2-71) ECU connector as shown in Table 2-11. The check is carried out with a...
Engine idle check
Engine idling is checked with a warm engine (oil temperature not less than 80°С), with a working oxygen concentration sensor in the exhaust gases, with correctly adjusted gaps...
Engine idling is checked with a warm engine (oil temperature not less than 80°С), with a working oxygen concentration sensor in the exhaust gases, with correctly adjusted gaps...
Checking and adjusting the throttle valve opening
Disconnect the idle speed control connector «A» (pic. 2-57). Apply a constant voltage of not more than 6 V to the idle speed controller by connecting the positive terminal of the...
Disconnect the idle speed control connector «A» (pic. 2-57). Apply a constant voltage of not more than 6 V to the idle speed controller by connecting the positive terminal of the...
Checking the idle speed controller
Disconnect the idle speed control connector (pic. 2-57). Connect an ohmmeter to the leads «1» and «2» regulator pads. The resistance should be in the range of 4-200 ohms. Connect...
Disconnect the idle speed control connector (pic. 2-57). Connect an ohmmeter to the leads «1» and «2» regulator pads. The resistance should be in the range of 4-200 ohms. Connect...
Ignition retard control valve check
Turn on the ignition. Open and close the throttle valve. At the same time, a click in valve 1 should be heard twice (pic. 2-58) ignition delay control. If no clicks are heard,...
Turn on the ignition. Open and close the throttle valve. At the same time, a click in valve 1 should be heard twice (pic. 2-58) ignition delay control. If no clicks are heard,...
Checking the Fuel Pressure Regulator
Disconnect the fuel supply hose (black color) from the branch pipe of the central injection unit. Connect the pressure gauge to the pipe of the central injection unit and to the...
Disconnect the fuel supply hose (black color) from the branch pipe of the central injection unit. Connect the pressure gauge to the pipe of the central injection unit and to the...
Throttle position sensor test
Disconnect the throttle position sensor connector (pic. 2-60). When measuring resistance between terminals, it should be: terminals «1» and «5» - 520-1300 Ohm; conclusions «1» and...
Disconnect the throttle position sensor connector (pic. 2-60). When measuring resistance between terminals, it should be: terminals «1» and «5» - 520-1300 Ohm; conclusions «1» and...
Checking the coolant temperature sensor
Disconnect the sensor connector (blue color) (pic. 2-61), connect an ohmmeter to the terminals of the sensor block and check that the ohmmeter readings correspond to the following...
Disconnect the sensor connector (blue color) (pic. 2-61), connect an ohmmeter to the terminals of the sensor block and check that the ohmmeter readings correspond to the following...
Checking the intake air temperature sensor
Disconnect the damper central injection unit connector (pic. 2-62), connect an ohmmeter to the terminals of the block of the unit. The relationship between the temperature of the...
Disconnect the damper central injection unit connector (pic. 2-62), connect an ohmmeter to the terminals of the block of the unit. The relationship between the temperature of the...
Injector test
Start and warm up the engine to normal operating temperature. Stop engine. Disconnect the air supply hose from the central injection unit housing and remove the central injection...
Start and warm up the engine to normal operating temperature. Stop engine. Disconnect the air supply hose from the central injection unit housing and remove the central injection...
Injector Ballast Resistor Check
Disconnect resistor connector (pic. 2-63), connect an ohmmeter to the terminals of the resistor block and make sure that the resistance value of the resistor is within 3-4 ohms.
Disconnect resistor connector (pic. 2-63), connect an ohmmeter to the terminals of the resistor block and make sure that the resistance value of the resistor is within 3-4 ohms.
Checking the oxygen content sensor in the exhaust gases
Note. Vehicles with a catalytic converter equipped with an oxygen sensor with slots in the receiver head (sensor 1). The oxygen sensor of vehicles without a catalytic converter...
Note. Vehicles with a catalytic converter equipped with an oxygen sensor with slots in the receiver head (sensor 1). The oxygen sensor of vehicles without a catalytic converter...
Checking the intake manifold heater
Disconnect heater wire connector (pic. 2-66). connect an ohmmeter to the block and «mass» and check the resistance. which should be in the range of 0.25-0.50 ohms.
Disconnect heater wire connector (pic. 2-66). connect an ohmmeter to the block and «mass» and check the resistance. which should be in the range of 0.25-0.50 ohms.
Throttle damper test
Open throttle valve. Make sure that when closing the throttle damper rod 2 enters its body under the influence of lever 1 (pic. 2-67). Check the gap between lever 1 and stem 2,...
Open throttle valve. Make sure that when closing the throttle damper rod 2 enters its body under the influence of lever 1 (pic. 2-67). Check the gap between lever 1 and stem 2,...
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