Why does my Suzuki Every fail the vehicle emission test in Pakistan?

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Why does my Suzuki Every fail the vehicle emission test in Pakistan?

Many Suzuki Every owners in Pakistan struggle to pass periodic emission checks, especially in cities like Lahore and Karachi. What are the typical causes of emission test failures, and how can they be addressed to meet local environmental standards?

Gari Specialist asked on 09 May 2025 16:51:36 pm

1 Answer

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Gari Master - on 09 May 2025 16:59:19 pm

Emission test failures are increasingly common, especially in urban centers like Lahore, Islamabad, and Karachi due to stricter regulations. Common reasons include:

Dirty o r clogged air filter – restricts air intake, leading to incomplete combustion.

Faulty spark plugs o r ignition system – causes misfiring, increasing unburned fuel emissions.

Worn-out oxygen sensor – sends incorrect signals to the ECU, disturbing fuel-air ratio.

Clogged catalytic converter – fails to properly convert harmful gases into less toxic ones.

Improper tuning o r ECU remapping – especially common in used JDM imports.

Solutions:

Ensure regular engine tuning and oil changes.

Replace air filter and spark plugs if overdue.

Use high-quality fuel and check for warning lights on the dashboard.

Visit a qualified mechanic for a pre-emission test diagnostic check.