To avoid personal injury and/or damage to the electronic ignition system, the following rules must be observed when working on electronic ignition systems:
- Do not tie high-voltage wires or touch them with bare hands while the engine is running or when the engine is cranking with the starter.
- Disconnect the ignition wires only when the ignition is off.
- Connecting and disconnecting instrument wires (tachometer/ignition tester) only be done with the ignition off.
- When the ignition is switched on, all plugs of the spark plugs must be put on the spark plugs. If, in the event of a malfunction, it is necessary to check for a spark, then it can be carried out on only one spark plug. To ensure good contact between the spark plug and «weight», you need to firmly press the plug of the spark plug or the spark plug itself to «mass» (e.g. cylinder block) using pliers with insulated handles, never by hand.
- Before checking compression, pull out the fuel pump relay and remove the plug from the ignition coil.
- The car should not heat up more than 80°C (e.g. when drying after painting or when steam cleaning). After the car has cooled down a bit, start the engine immediately.
- Wash the engine only with the ignition off.
- When carrying out electric welding work, completely disconnect the battery.