P0506

2017-10-10

Description:

  • The fault code P0506 indicates that the engine’s idle control system is operating below the expected RPM level. This may cause the vehicle to stall or run poorly.

Possible Symptoms:

  • Engine stalls or runs poorly at idle

  • Illuminated check engine light

  • Rough idle or surging

  • Reduced engine power or acceleration

Possible Causes:

  • Dirty or faulty throttle body

  • Malfunctioning idle air control valve

  • Faulty mass airflow sensor

  • Vacuum leaks in the intake system

  • Faulty or damaged wiring in the idle control system circuit

Related Parts:

  • Idle Air Control System: IAC (Idle Air Control) System controls the speed of the engine when it is idling. This car's engine may keep stalling due to problems with the IAC

Possible Solutions:

  • Clean or replace the throttle body

  • Replace the idle air control valve

  • Replace the mass airflow sensor

  • Inspect and replace any damaged vacuum hoses or components

  • Check and repair any damaged wiring in the idle control system circuit

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