Are clogged fuel injectors a major cause of engine sputtering in Changan Kalam, especially with low-quality fuel commonly available in Pakistan?

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Are clogged fuel injectors a major cause of engine sputtering in Changan Kalam, especially with low-quality fuel commonly available in Pakistan?

Some mechanics blame fuel impurities for injector blockage. Is regular injector cleaning recommended by Changan?

Zarnish asked on 18 Jun 2025 18:20:48 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 18:25:58 pm

✅ Yes — very likely.

Local fuel in many areas contains impurities and residue that cause:

Injector tip clogging

Irregular spray patterns

Mechanics recommend injector cleaning every 20,000–30,000 km in Pakistan.

Changans service manual does not mandate frequent cleaning, but in local conditions it becomes necessary.

🧪 Tip: Use a fuel injector cleaner additive every few months o r perform ultrasonic injector cleaning every 25k km.