Can a failing spark plug o r ignition coil lead to engine sputtering in Honda City?

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Can a failing spark plug o r ignition coil lead to engine sputtering in Honda City?

The ignition system plays a crucial role in smooth engine operation. If a spark plug is misfiring o r an ignition coil is weak, the engine may hesitate o r sputter. How can Honda City owners diagnose ignition-related problems, and what is the recommended replacement interval for spark plugs in Pakistani driving conditions?

Sandeep asked on 26 Feb 2025 11:17:27 am

1 Answer

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Car Mechanic Expert - on 26 Feb 2025 11:57:36 am

How Spark Plugs and Ignition Coils Cause Sputtering:

Worn Spark Plugs: Spark plugs that are old o r misfiring can cause the engine to sputter because they fail to ignite the air-fuel mixture effectively.
Weak Ignition Coil: The ignition coil is responsible for creating the spark that ignites the air-fuel mixture. If it’s malfunctioning, it can lead to weak o r inconsistent sparks, causing the engine to sputter.

Diagnosing Spark Plug and Ignition Coil Problems:

Check Engine Light: If there’s a misfire, the check engine light will usually illuminate, and a diagnostic scan can identify which cylinder is misfiring.
Visual Inspection: Check spark plugs for signs of wear o r carbon buildup. Faulty coils may show physical signs of damage, like cracks o r corrosion.
Performance Test: If the engine sputters under acceleration o r idles roughly, it could indicate ignition-related issues.

Recommended Spark Plug Replacement Interval:

For Pakistani driving conditions, spark plugs should generally be replaced every 30,000 to 50,000 km depending on the type of plugs used standard vs. iridium.