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P0456 EVAP CONTROL SYSTEM EC-731 < COMPONENT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O 3. CHECK FUEL FILLER CAP FUNCTION Check for air releasing sound while opening the fuel filler cap. OK >> GO TO 5. NG >> GO TO 4. 4. CHECK FUEL TANK VACUUM RELIEF VALVE EC-691, "Component Inspection" OK or NG OK >> GO TO 5. NG >> Replace fuel filler cap with a genuine one. 5. INSTALL THE PRESSURE PUMP To locate the EVAP leak, install EVAP service port adapter and pres- NOTE: With CONSULT-III>>GO TO 6. 6. CHECK FOR EVAP LEAK With CONSULT-III 1. Turn ignition switch ON. 2. Select “EVAP SYSTEM CLOSE” of “WORK SUPPORT” mode with CONSULT-III. 3. Touch “START” and apply pressure into the EVAP line until the pressure indicator reaches the middle of CAUTION: • Never use compressed air or a high pressure pump. 2 , 0.6 psi) of pressure in the system. BBIA0550E SEF916U |