# Códigos de avería OBD2

Source: https://obdlens.com/es/codes/
Last built: 941ad311c197960f285f

[Diagnostic knowledge](https://obdlens.com/knowledge/)

Consulta las guías de códigos publicadas en español. Para los demás códigos, consulta la referencia en inglés.

- [Código P0420: eficiencia del catalizador por debajo del umbral (banco 1)](https://obdlens.com/es/codes/p0420/)
- [Código P0171: sistema demasiado pobre (banco 1)](https://obdlens.com/es/codes/p0171/)
- [Código P0300: fallo de encendido aleatorio o múltiple detectado](https://obdlens.com/es/codes/p0300/)
- [Código P0401: sistema de recirculación de gases de escape (EGR), flujo insuficiente](https://obdlens.com/es/codes/p0401/)
- [Código P0101: sensor de flujo de aire (MAF), problema de rango o rendimiento](https://obdlens.com/es/codes/p0101/)

[English: all code references](https://obdlens.com/knowledge/)

Reference-family membership is not proof that a code applies to every listed ECU or vehicle. Runtime-ready definitions are not physical-vehicle validation. Unavailable readings must not be treated as zero. App and hardware sale availability must be checked separately.

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Reference-family membership is not proof that a code applies to every listed ECU or vehicle. Runtime-ready definitions are not physical-vehicle validation. Unavailable readings must not be treated as zero. App and hardware sale availability must be checked separately.