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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (Engine Control System Diagnosis - 2.0L (2 Of 3) (Except HEV)) >> DTC P0449: Evaporative Emission System-Vent Valve/Solenoid Circuit >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.

■ Canister Air-Filter inspection 

  1. Disassemble the Canister Air-Filter and hose from their respective positions.
  2. Check the Canister air-filter for contamination.
  3. Is Canister Air-Filter contaminated with dust?

    YES 

    NO 

    • Go to "Canister Close Valve (CCV) inspection" procedure below

■ Canister Close Valve (CCV) Line Inspection 

  1. Reconnect all EVAP hardware that was previously disconnected.
  2. Disconnect hose connecting Canister Closing Valve (CCV) to canister.
  3. IG "ON"
  4. Blow air to the canister side of the valve and verify air escapes to the air filter side.
  5. Install GDS and select "CANISTER CLOSE VALVE" on the Actuation Test mode.
  6. Activates "CANISTER CLOSE VALVE" in "Actuation Test" menu on GDS by clicking "START" icon.
  7. Blow air into hose and verify air does not escape.
  8. Repeat this procedure 4 or 5 times to ensure CCV reliability.
  9. Is CCV working properly?

    YES 

    • 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.

    NO 

    • Substitute with a known - good CCV and check for proper operation. If the problem is corrected, replace CCV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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