Ignition cables

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.

Verwandte Themen

  • 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.