DTC P0507: Idle Control System Rpm - Higher Than Expected: Notes

1. - 

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

Engine keeps running at higher speed than specified idle speed.

1. CHECK DTC  .
   1. Turn the ignition switch to ON.
   2. Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC other than P0507 displayed? (Current malfunction)

   Yes  : Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC TROUBLE CODE (DTC) .

   No  : Go to  2 .

2. CHECK AIR INTAKE SYSTEM  .
   1. Start and idle the engine.
   2. Check the following items.
      • Loose installation of intake manifold and throttle body
      • Cracks of intake manifold gasket and throttle body gasket
      • Disconnection of vacuum hoses

   Is there any fault in air intake system?

   Yes  : Repair air suction and leaks.

   No  : Go to  3 .

3. CHECK ELECTRONIC THROTTLE CONTROL  .
   1. Turn the ignition switch to OFF.
   2. Remove the electronic throttle control. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>THROTTLE BODY .
   3. Check the electronic throttle control.

   Are foreign matter found inside electronic throttle control?

   Yes  : Remove foreign matter from electronic throttle control.

   No  : Perform the diagnosis for DTC P2101. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P2101: THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE .