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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0456: Evaporative Emission System-Leak Detected (Very Small Leak) >> W/Harness Inspection >> Fuel Tank Line Inspection

Fuel Tank Line Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Relieve the fuel system pressure and remove the fuel tank
    CAUTION: Before removing the fuel tank, make sure the fuel hoses are not leaking.
  2. Block all of the following outlets:
    1. Fuel lines
    2. Fuel filler neck
  3. Apply maximum of 10cmHg(4 inHg) pressure to the EVAP. hose at the fuel tank. Then, pinch the EVAP. hose to retain the pressure.
  4. Check the suspect area for leaks with a soap solution.
  5. Were any leak(s) found?

    YES 

    NO 

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.