Is a loose fuel cap in MG HS responsible for frequent check-engine lights?

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Is a loose fuel cap in MG HS responsible for frequent check-engine lights?

Internationally, a loose fuel cap often triggers warning lights. Are Pakistani MG HS drivers also facing engine light problems linked to this issue?

Lubaba asked on 20 Aug 2025 11:15:22 am

1 Answer

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Car Mechanic Expert - on 20 Aug 2025 11:20:06 am

Yes, a loose fuel cap in the MG HS can trigger the check-engine light, as the system detects a leak in the fuel evaporation system EVAP. Several Pakistani owners have faced this issue, confirming that the problem is not just international—it also happens locally with MG HS units.