OBD2 Codes

Get detailed guides to the definition, meaning, symptoms, causes, diagnosis and how to fix OBD2 codes.

P0171 and P0174 – System Too Lean

P0171 and P0714 | Expert Guide | Detailed Explanation | Meaning | Causes | Symptoms | Diagnostics | How to Fixes | How to Avoid in the Future.

P0169 – Incorrect Fuel Composition

Filling up a car’s fuel tank with wrong fuel is a common mistake people do on the fuel stations. P0169 is the most widely used OBD2 DTC code for wrong fuel composition.

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