The electrical circuit of the fuel injection system is shown in the section «wiring diagrams».
Attention! 1. Before removing any ECM components, disconnect the wire from the «minus» battery.
Attention! 2. Do not start the engine if the cable lugs on the battery are loose.
Attention! 3. Never disconnect the battery from the car's on-board network when the engine is running.
Attention! 4. When charging, disconnect the battery from the car's on-board network.
Attention! 5. Do not expose the ECU to temperatures above 65°C in working condition and above 80°C in non-working condition (e.g. in a drying chamber). If this temperature is exceeded, the ECU must be removed from the vehicle.
Attention! 6. Do not disconnect or connect the wire harness connectors to the ECU while the ignition is on.
Attention! 7. Before carrying out electric arc welding on a car, disconnect the wires from the battery and the wire connectors from the computer.
Attention! 8. Perform all voltage measurements with a digital voltmeter with an internal resistance of at least 10 MΩ.