Guide to Car Ignition Wire Maintenance

Aging and damage to the ignition wire can significantly reduce the ignition energy, leading to increased fuel consumption and decreased power output of the engine. In severe cases, it may cause misfiring, which is a fatal fault for engines equipped with three-way catalytic converters.

Next, let's take a look at the maintenance and inspection of the ignition wire.

Many people are aware of the need to regularly replace spark plugs, yet they overlook the maintenance of other components in the ignition system, with the ignition high-voltage wire being one of them. When the engine is running, the ignition wire often experiences high-voltage pulse currents of tens of thousands of volts. Due to its prolonged exposure to high temperatures, dust, and vibrations, it inevitably ages and even breaks. Therefore, like spark plugs, it is also a consumable that requires frequent replacement.

The aging and damage of the ignition wire can significantly reduce the ignition energy, leading to increased fuel consumption and decreased power output of the engine. In severe cases, it may cause misfiring, which is a fatal fault for engines equipped with three-way catalytic converters. According to foreign experience, even without any faults, the ignition high-tension wire needs to be replaced after approximately every 20,000 kilometers of driving. However, many domestic car owners often wait until the engine experiences unstable operation or even fails to start before thinking of checking the ignition system. By then, the potential damage to the ignition system components, the fuel wasted, and the wear and tear on the engine have far exceeded its own value. In addition, components such as the distributor cap, distributor rotor, ignition coil, and spark plug plug should also be included in the scope of routine maintenance and inspection.