The electronic ignition system is an integral part of the engine management system. Its main working components are spark plugs, coils and ignition modules. The distribution of the I / O voltage supply to the spark plugs is controlled by the electronic engine control unit (ECM).
Manual adjustment of the ignition timing is not performed - if the required settings are violated, the failed components should be replaced.
The components of the ignition system are not subject to wear and do not require regular maintenance. According to maintenance schedule (see chapter Vehicle settings and routine maintenance) only the spark plugs should be replaced.
Basic information on the operation and sensors of systems management engine and fuel injection are set out in Chapter Power supply and exhaust systems.
Safety measures when working with ignition and fuel injection control systems
To prevent injury and/or failure of electrical and electronic components, the following must be observed:
- Do not touch the ignition system wiring or disconnect its connectors while the engine is running/rotating the starter;
- Disconnect/connect fuel lines of the injection control system, electrical wiring of the ignition system, as well as any diagnostic and measuring equipment only with the ignition off;
- It is not allowed to carry out maintenance work on the electronic ignition system by people with an implanted pacemaker.