Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check the following.
   • Blockage, crush, or damage in the hose and the piping of EVAP purge line between fuel tank and intake manifold.
   • Blockage, crush, or damage in the hose and the piping of intake air passage between inlet air duct and intake manifold.

   Is the inspection result normal? 

   YES: GO TO 2.

   NO: Repair or replace error-detected parts

Check EVAP control system pressure sensor. Refer to "COMPONENT INSPECTION (EVAP CONTROL SYSTEM PRESSURE SENSOR) ".

Is the inspection result normal? 

YES: GO TO 3.

NO: Replace EVAP control system pressure sensor. Refer to "2WD: EXPLODED VIEW ".

Check turbocharger boost sensor. Refer to "COMPONENT INSPECTION (TURBOCHARGER BOOST SENSOR) ".

Is the inspection result normal? 

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

NO: Replace turbocharger boost sensor (with intake temperature sensor 2). Refer to "EXPLODED VIEW ".