Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » P0507 ISC system
Diagnosis Procedure

1.CHECK PCV HOSE CONNECTION

Confirm that PCV hose is connected correctly.

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair or replace errordetected parts.

2.CHECK INTAKE AIR LEAK

  1. Start engine and let it idle.
  2. Listen for an intake air leak after the mass air flow sensor.

Is intake air leak detected?

YES >> Discover air leak location and repair.

NO >> Replace ECM. Refer to EC, "Removal and Installation".

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