Engine management system «Simos» Volkswagen Passat B4
Integrated engine management system «SIMOS»
The Simos KSUD is used on AGG engines manufactured in 1995-96 and includes a distributed fuel injection control subsystem and a spark advance angle control subsystem. The...
The Simos KSUD is used on AGG engines manufactured in 1995-96 and includes a distributed fuel injection control subsystem and a spark advance angle control subsystem. The...
Checking and adjusting idle speed
The crankshaft idle speed and the carbon monoxide content in the exhaust gases are regulated by the KSUD controller automatically within the range of 750-850 rpm and 0.5%,...
The crankshaft idle speed and the carbon monoxide content in the exhaust gases are regulated by the KSUD controller automatically within the range of 750-850 rpm and 0.5%,...
Checking and adjusting the throttle valve opening
The throttle valve opening is set at the factory and cannot be adjusted during operation.
The throttle valve opening is set at the factory and cannot be adjusted during operation.
Checking the fuel pressure in the system
Turn off the ignition. Connect the test pressure gauge hoses to the fuel supply hose and to the fuel line (fig. 2-124). Start the engine at idle speed and check the regulated fuel...
Turn off the ignition. Connect the test pressure gauge hoses to the fuel supply hose and to the fuel line (fig. 2-124). Start the engine at idle speed and check the regulated fuel...
Checking the idle switch
Turn off the ignition. Disconnect the 8-pin sensor connector. Connect an ohmmeter to terminal "3" of the sensor and to the "ground" (fig. 2-125) and check the resistance with an...
Turn off the ignition. Disconnect the 8-pin sensor connector. Connect an ohmmeter to terminal "3" of the sensor and to the "ground" (fig. 2-125) and check the resistance with an...
Checking the supply voltage of the mass air flow meter
Turn off the ignition. Disconnect the 3-pin air flow meter connector, connect the voltmeter to terminals "2" and "3" of the connector (fig. 2-127), turn on the ignition and check...
Turn off the ignition. Disconnect the 3-pin air flow meter connector, connect the voltmeter to terminals "2" and "3" of the connector (fig. 2-127), turn on the ignition and check...
Checking the coolant temperature sensor
Turn off the ignition. Disconnect the 4-pin connector of the coolant temperature sensor, connect an ohmmeter to terminals "1" and "3" of the sensor (fig. 2-128). measure the...
There is 1 comment
Turn off the ignition. Disconnect the 4-pin connector of the coolant temperature sensor, connect an ohmmeter to terminals "1" and "3" of the sensor (fig. 2-128). measure the...
There is 1 comment
Checking the intake air temperature sensor
Turn off the ignition. Disconnect the intake air temperature sensor connector and connect an ohmmeter to the sensor terminals (fig. 2-129), measure the ambient air temperature...
Turn off the ignition. Disconnect the intake air temperature sensor connector and connect an ohmmeter to the sensor terminals (fig. 2-129), measure the ambient air temperature...
Checking the idle speed control valve
Note: The idle air control valve forms a single unit with the idle speed position sensor of the throttle valve and the potentiometric throttle position sensor. Turn off the...
Note: The idle air control valve forms a single unit with the idle speed position sensor of the throttle valve and the potentiometric throttle position sensor. Turn off the...
Checking injection nozzles
Checking the winding resistance. Turn off the ignition. Disconnect the injector connector, connect an ohmmeter to the injector terminals (fig. 2-130) and check the resistance,...
Checking the winding resistance. Turn off the ignition. Disconnect the injector connector, connect an ohmmeter to the injector terminals (fig. 2-130) and check the resistance,...
Checking the oxygen sensor in the exhaust gases
Checking the sensor for proper operation Turn off the ignition. Disconnect the oxygen sensor connector, connect a voltmeter to terminals "3" and "4" (fig. 2-132, pos. 1), start...
Checking the sensor for proper operation Turn off the ignition. Disconnect the oxygen sensor connector, connect a voltmeter to terminals "3" and "4" (fig. 2-132, pos. 1), start...
Checking the camshaft position sensor
Checking the operation of the sensor Turn off the ignition. Move the rubber cover of the ignition distributor connector, connect the LED tester to terminals "2" (green and white...
Checking the operation of the sensor Turn off the ignition. Move the rubber cover of the ignition distributor connector, connect the LED tester to terminals "2" (green and white...
Checking the supply voltage of the crankshaft speed sensor
Turn off the ignition. Disconnect the sensor connector, connect the voltmeter to terminals "1" and "3" of the cable part of the connector (fig. 2-134), turn on the ignition and...
Turn off the ignition. Disconnect the sensor connector, connect the voltmeter to terminals "1" and "3" of the cable part of the connector (fig. 2-134), turn on the ignition and...
Checking the vehicle speed sensor
Note: Due to the small size of the terminals of the cable part of the controller connector, when testing through the specified terminals, it is recommended to use a transition...
Note: Due to the small size of the terminals of the cable part of the controller connector, when testing through the specified terminals, it is recommended to use a transition...
Checking the supply voltage and ground connection of the controller
Note: Due to the small size of the terminals of the cable part of the controller connector, when testing through the specified terminals, it is recommended to use a transition...
Note: Due to the small size of the terminals of the cable part of the controller connector, when testing through the specified terminals, it is recommended to use a transition...
Ignition Timing Control Subsystem
On the "AGG" engine, the ignition distributor is driven by the intermediate shaft. Cylinder firing order: 1-3-4-2. Initial ignition advance angle before TDC: 6-12°. The resistance...
On the "AGG" engine, the ignition distributor is driven by the intermediate shaft. Cylinder firing order: 1-3-4-2. Initial ignition advance angle before TDC: 6-12°. The resistance...
Checking the operation of the ignition advance angle (IAA) control subsystem
The check should be carried out on an engine warmed up to an oil temperature of at least 80°C. Connect the ignition timing tester and the control tachometer according to the...
The check should be carried out on an engine warmed up to an oil temperature of at least 80°C. Connect the ignition timing tester and the control tachometer according to the...
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