Are there common complaints of malfunctioning oxygen sensors O2 sensors in Changan Kalam that result in improper emissions management?

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Are there common complaints of malfunctioning oxygen sensors O2 sensors in Changan Kalam that result in improper emissions management?

Faulty sensors can trigger the check engine light and increase pollution. Is the OEM sensor quality reliable for local road conditions?

Lubaba asked on 18 Jun 2025 17:38:01 pm

1 Answer

8 views |

Car Mechanic Expert - on 18 Jun 2025 17:44:44 pm

⚠️ Yes — sensor failure is possible but underreported.

Many users dont even know the vehicle has O2 sensors.

Symptoms of faulty sensors:

Check engine light MIL stays on

Poor mileage and emissions

Rough idling

OEM sensors may be low-grade and not durable for Pakistan’s dusty, hot conditions.

🔧 Mechanics often replace them with aftermarket sensors o r bypass them entirely, affecting emissions management.