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Check Engine Light Codes Explained: P0420, P0300, P0171 & More (DIY Fixes & Costs)
That sudden, unwelcome glow on your dashboard can trigger instant anxiety. Seeing the yellow engine light on your dashboard means your car’s computer has detected a fault, but you shouldn't immediately assume the worst. The good news is, learning how to find out why your check engine light is on is easier than you think.
This guide is designed to relieve that stress. We'll explore what to do when your check engine light comes on suddenly, explain the difference between a minor issue and a
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27th Jun 2025