Has Anyone Faced Engine Warning Lights Due to a Clogged Filter?

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Has Anyone Faced Engine Warning Lights Due to a Clogged Filter?

A clogged air o r fuel filter can trigger engine warning lights. Have you encountered this issue, and how did you diagnose it?

Qalb E Momin asked on 11 Feb 2025 16:08:34 pm

1 Answer

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Car Mechanic Expert - on 11 Feb 2025 16:11:29 pm

🔴 Yes! A clogged filter can trigger warning lights on the dashboard.

🚨 Possible Error Codes & Causes:
✔️ P0101 – MAF Sensor Issue dirty air filter affecting airflow.
✔️ P0171 – Engine Running Lean blocked fuel filter reducing fuel supply.
✔️ P2002 – DPF Efficiency Below Threshold clogged diesel particulate filter.
✔️ Check Engine Light – General warning if filters are restricted.

📌 Fix: Scan the vehicle with an OBD2 scanner, check the error code, and clean/replace the filter as needed.