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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> DTC P0455: EVAP Control System >> Diagnostic Procedure >> 4. Check Fuel Tank Vacuum Relief Valve

4. Check Fuel Tank Vacuum Relief Valve

Refer to FUEL TANK VACUUM RELIEF VALVE (BUILT INTO FUEL FULLER CAP)  .

OK or NG 

OK : GO TO 5.

NG : Replace fuel filler cap with a genuine one.

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