What are the symptoms of a faulty ignition wire in a car?

[OAndres]

Here are the fault phenomena caused by a faulty ignition wire in a car: 1. Unstable engine operation or shaking: For example, reasons such as poor quality or aging of the high-voltage wire can cause this. 2. Single or multiple cylinder misfires or intermittent faults: For example, individual high-voltage wires with quality issues leading to poor conduction or resistance changes may cause this. 3. Abnormal ignition: The engine may experience weak acceleration, hesitation, or poor acceleration; For example, during use, the conductivity of the high-voltage wire weakens, internal resistance increases, resulting in reduced ignition intensity to the spark plug, weak ignition, and incomplete combustion.