What are the symptoms of a faulty engine high-voltage line?

1 Answers
AbelDella
07/30/25 3:25am
Automobile high-voltage line damage symptoms include spark plugs releasing dim yellow and insufficient energy electric sparks, unable to properly ignite the air-fuel mixture, preventing the spark plug electrodes from releasing sparks, leading to unburned mixture and resulting in issues like cylinder misfire. Hazards of engine cylinder misfire: Engine cylinder misfire causes reduced engine power, increased fuel consumption, with very noticeable vibration and noise. Prolonged fuel injection without ignition in engine cylinders can also lead to gasoline flooding the cylinder. Manifestations of ignition coil failure: At idle, the vehicle body shakes noticeably; during driving, when the RPM is below 2500, the body exhibits obvious vibration with weak acceleration; when the RPM exceeds 2500, the shaking sensation disappears. Opening the engine hood and observing the running engine reveals obvious engine vibration.
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