Engine management system car Volkswagen Passat B5

Technical data of engine management systems
Engine code Engine management system AHL ADP ADR AEB AGZ ACK/ALG Simos 2 Motronic 3.8.2 Motronic 3.8.2 Motronic 3.8.2 Motronic 3.8.2 Motronic 3.8.2 Idle speed, rpm 760–960 760–960...

Operation of the engine management system
Position of the tape conductor (1) in the air flow meter Throttle control elements 1 - throttle control lever; 2 - idle switch; 3 - Throttle position potentiometer. The...

Checking the fuel injection system
In the fuel injection system, you can only check the main electrical circuits yourself. If the engine is not running normally, first check the condition of the electrical wiring...

Sensors and actuators of the engine management system
Location of the MOTRONIC engine management system components in the engine compartment with a 1.8-I engine 1 - coolant temperature sensor; 2 - camshaft position adjustment valve;...

Ignition system
The ignition system creates a spark discharge in each engine cylinder at a certain moment, which ignites the compressed fuel mixture. To create a spark in the ignition coil, the...

Direct ignition system (except 1.6-I ADP engines)
The direct ignition system has no mechanical components. Instead of the usual ignition coil and distributor, separate ignition coils are used for each cylinder, which are mounted...

Ignition system with ignition distributor (engine 1.6-I ADP)
This is a contactless ignition system. Instead of a breaker, the ignition distributor is equipped with a maintenance-free Hall sensor. The sensor is contactless, microelectronic,...

Removal and installation the ignition distributor
The ignition distributor has a Hall sensor. Removal 1. Turn the engine crankshaft to a position where the piston of the first cylinder is at TDC in the compression stroke. 2....

Fuel line and fuel injectors
Fuel line and fuel injectors of four-cylinder gasoline engines 1 - fixing bracket. When installing, check the correct position of the fixing bracket; 2 - filter; 3 - fuel pressure...

Checking fuel injectors (4-cylinder petrol engine)
Fuel injectors are electromagnetic valves opened and closed by the engine control unit, which determines the opening time and duration of fuel injection depending on the engine...

Checking the voltage supply to the fuel injectors
Location of electrical connector (1) supplying voltage to the fuel injector and connector (2) on the fuel injector Execution order 1. Disconnect the electrical connector from the...

Checking the spray pattern and tightness of the fuel injector
Engines 1.6-I AHL 1. Disconnect the four-pin electrical connector from the coolant temperature sensor, which is located on the thermostat housing. 2. Short-circuit contacts 1 and...

Main faults of the engine management system
Before troubleshooting, make sure that the engine is started correctly. When starting a cold or hot engine, do not press the accelerator pedal. After starting a hot engine, you...

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