Diagnosis Procedure

CHECK INTAKE AIR LEAKAGE
1. Start engine and let it idle.
2. Listen for an intake air leakage after the mass air flow sensor.
  Is intake air leakage detected?
  
  YES >> Discover air leakage location and repair.
  
  NO >> GO TO 2.
REPLACE ECM
1. Stop engine.
2. Replace ECM.
3. Go to "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : SPECIAL REPAIR REQUIREMENT ".
  INSPECTION END