Are ECU o r sensor-related engine faults common in Changan Karvaan in Pakistan, leading to check engine lights o r limp mode activation?

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Are ECU o r sensor-related engine faults common in Changan Karvaan in Pakistan, leading to check engine lights o r limp mode activation?

Issues with oxygen, MAP, o r temperature sensors are reported. Are road dust, wiring faults, o r poor-quality fuel causing sensor failure?

Sandeep asked on 26 Jun 2025 11:53:26 am

1 Answer

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Car Mechanic Expert - on 26 Jun 2025 11:57:43 am

Yes. Users report frequent CEL Check Engine Light and engine derating limp mode due to:

O2 sensor failure

MAP sensor misreading

Coolant temp sensor faults

Contributing factors:

Unleaded o r adulterated petrol

Dusty environment clogging sensors

Loose o r brittle wiring and connectors

➡️ Sensor quality may be subpar, and ECU reprogramming may be needed in repeated cases.