Precautions when working on the electronic fuel injection system

The fuel system is under pressure. When the system is opened, gasoline may squirt out and must be collected with a rag. Wear protective goggles when working. Before loosening the hose connections, put thick rags on them. Then carefully release the pressure by carefully loosening the hoses.

To avoid injury and / or damage to parts of the injection and ignition systems, the following rules must be observed:

Do not touch or remove high-voltage wires while the engine is running or when the engine is cranking with the starter.

Connect and disconnect the wires of the ignition and injection systems and the wires of measuring instruments only with the ignition off.

When the engine should crank the starter but not start (for example, when checking compression, remove the fuel pump relay and ignition coil plug.