The ignition cables are responsible for conducting the voltage (U) to the spark plug with as little loss as possible. This is achieved - depending on the type of vehicle – using:
- a mechanical spark distributor and distributor cap,
- a fully electronic ignition module,
- a fully electronic semi-direct ignition or double spark ignition coil.
Since the ignition voltage (U) of up to 36,000 volts is in the high-voltage range, the ignition cables have to be protected accordingly against overvoltage. The ignition voltage must never permeate the insulation and flow to ground, since this could cause misfiring.
- Principles: Ignition cables are more than just cable. They must meet very specific requirements in order to reliably provide their service.
- Installation tips: When installing ignition cables, some important things must be taken into account.
- Diagnosis: Ignition cables are subject to high stress which can lead to damage and/or malfunction.
- Ignition sequences: In the classical version a central ignition coil generates the high voltage necessary for the ignition of the fuel-air mixture.