Could prolonged use of faulty spark plugs cause damage to the ignition coil o r catalytic converter in Changan Kalam?

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Could prolonged use of faulty spark plugs cause damage to the ignition coil o r catalytic converter in Changan Kalam?

Continuous misfires can overload other components. Are owners informed of the chain reaction caused by ignoring spark plug maintenance?

Sirat Ul Jinan asked on 25 Jun 2025 15:37:32 pm

1 Answer

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Car Mechanic Expert - on 25 Jun 2025 15:43:19 pm

Yes — this is very serious:

Misfiring plugs cause the ignition coil to overwork, leading to coil burnout.

Unburnt fuel enters the exhaust, overheating the catalytic converter, which may:

Melt the converter’s core

Trigger expensive failures

➡️ Timely plug replacement prevents chain damage to the entire ignition and emission system.