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Technical description

📄 System overview, Motronic 4.1

📄 Main components of the Motronic system

📄 Three-circuit breaking via anti-theft alarm

📄 Ignition system

📄 Knock control

📄 Fuel injection

📄 Idle speed control

📄 Secondary air injection

📄 Control module inputs

📄 Control module outputs

📄 Control module

📄 Engine control module powersupply

📄 Main relay and fuel pump relay

📄 Ground connection

📄 Sensor ground/reference ground

📄 Crankshaft position sensor

📄 Engine speed

📄 Camshaft position sensor

📄 Mass air flow sensor

📄 Throttle position sensor

📄 Coolant temperature sensor

📄 Knock control

📄 Vehicle speed signal

📄 Ignition timing

📄 Fuel injection

📄 Idle speed control

📄 Fuel evaporation

📄 Secondary air injection system

📄 A/C compressor

📄 Transmission control module(TCM)

📄 SHIFT UP LAMP

📄 Low fuel level

📄 CHECK ENGINE LAMP (MIL)

📄 Sensor, rough road

📄 Diagnostics communication