Why does the Changan Alsvin engine often sputter during idle o r low-speed driving in Pakistan?

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Why does the Changan Alsvin engine often sputter during idle o r low-speed driving in Pakistan?

Many owners report that their Alsvin sputters o r vibrates at idle o r in stop-and-go traffic. Could this be due to poor fuel quality, faulty spark plugs, o r sensor issues common in local conditions?

Lubaba asked on 11 Jun 2025 11:54:42 am

1 Answer

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Car Mechanic Expert - on 11 Jun 2025 11:58:56 am

Engine sputtering at idle o r in low-speed traffic is a common complaint and can be caused by:

Poor fuel quality high sulphur o r low-octane content.

Worn spark plugs o r weak ignition coils.

Clogged throttle body o r dirty injectors.

Sensor malfunction MAF, O2, o r coolant sensor misreadings.

Improper ECU calibration, especially in early models.

⚠️ Urban traffic, frequent AC usage, and stop-start driving exacerbate the issue.