P016C

2017-10-10

Description:

  • Closed Loop Air/Fuel Ratio Control At Limit System Too Lean

Possible Symptoms:

  • Check for any vacuum leaks or air intake leaks

  • Inspect and clean the mass airflow sensor

  • Test and possibly replace the oxygen sensor

  • Check and clean the fuel injectors

  • Inspect and clean the throttle body

Possible Causes:

  • Clogged or dirty fuel injectors

  • Faulty oxygen sensor

  • Vacuum leaks in the intake manifold or hoses

  • Defective mass airflow sensor (MAF)

  • Faulty fuel pressure regulator

Related Parts:

Possible Solutions:

  • Engine misfires or runs rough

  • Decreased engine power or performance

  • Surging or hesitation during acceleration

  • Poor fuel efficiency or increased fuel consumption

  • Illumination of the check engine light (MIL)

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