Does a clogged air filter in Changan Karvaan reduce engine efficiency and increase CO2 emissions in Pakistans dusty climate?

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Does a clogged air filter in Changan Karvaan reduce engine efficiency and increase CO2 emissions in Pakistans dusty climate?

Air intake blockage causes fuel-rich mixtures. Are drivers regularly replacing filters based on local driving conditions?

Sandeep asked on 26 Jun 2025 15:56:56 pm

1 Answer

13 views |

Car Mechanic Expert - on 26 Jun 2025 16:06:56 pm

Yes, especially in urban o r rural areas with dust, smoke, and pollen:

A clogged air filter reduces airflow, causing the ECU to increase fuel injection.

This results in a rich mixture, more black smoke, and higher CO2 and CO emissions.

Many owners delay filter replacement, unaware of its impact on performance and pollution.

⛔ Conclusion: Air filter neglect is a common cause of higher fuel use and emissions in Karvaan under local conditions.