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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1448: EVAP Canister Vent Control Valve >> Component Inspection >> EVAP Canister Vent Control Valve >> With GST

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  1. Remove EVAP canister vent control valve from EVAP canister.
  2. Check portion B  of EVAP canister vent control valve for being rusted.
    Fig 1: EVAP Canister Vent Control Valve To EVAP Canister Torque Specifications
    G00796477Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check air passage continuity and operation delay time under the following conditions.

    Make sure new O-ring is installed properly. 

  4. Clean the air passage (Portion A  to B  ) of EVAP canister vent control valve using an air blower.
  5. Perform Test No. 9 again.
    Fig 2: Manually Activating EVAP Canister Vent Control Valve
    G00796478Courtesy of NISSAN MOTOR CO., U.S.A.
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