Prince Pearl Engine Sputtering on CNG and Petrol – What’s the Fix?

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Prince Pearl Engine Sputtering on CNG and Petrol – What’s the Fix?

Talha Kyanii asked on 16 Oct 2025 15:36:55 pm

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Gari Master - on 16 Oct 2025 15:40:48 pm

Prince Pearl is prone to engine sputtering when used with low-quality CNG kits o r poor fuel, especially in Karachi.

Here’s what to check:

✅ CNG Tuning & Kit Health: If you’re using an aftermarket CNG kit, it may need proper tuning. Sputtering on both petrol and CNG suggests something beyond just fuel type.

✅ Spark Plugs: Replace them with dual-fuel-compatible plugs e.g., NGK BPR6EIX o r similar.

✅ Throttle Body & Idle Control Valve: Clean the throttle body. Carbon buildup is very common in small engines running on CNG in Pakistan.

✅ Vacuum Leaks: Inspect for any broken vacuum lines o r cracked rubber hoses. A vacuum leak can cause unstable idling on both fuels.

✅ Air Filter: Replace if dirty. Poor airflow contributes to sputtering.

Many Prince Pearl owners in Pakistan report that regular CNG tuning, throttle cleaning, and using better plugs significantly improves performance.