P016B Atención pronto

Closed Loop Air/Fuel Ratio Control At Limit - System Too Rich

Powertrain

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Descripción

This code means the engine computer is working as hard as it can to adjust the air and fuel mixture, but it's still too rich (too much fuel). This can lead to poor fuel economy and increased pollution.

Causas comunes

  • Leaking fuel injectors
  • Faulty mass airflow (MAF) sensor
  • Faulty oxygen sensor
  • Problem with the fuel pressure regulator
  • Clogged air filter

Síntomas

  • Check Engine light is on
  • Reduced fuel economy
  • Black smoke from the exhaust
  • Rough idling
  • Failed emissions test

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