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Home >> Infiniti >> 2017 >> QX70 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0448: EVAP Canister Vent Control Valve >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P0448 EVAP Canister Vent Control Valve close EVAP Canister Vent Control Valve remains closed under specified driving conditions.
  • EVAP Canister Vent Control Valve
  • EVAP Control System Pressure Sensor and the circuit
  • Blocked rubber tube to EVAP Canister Vent Control Valve
  • EVAP Canister is saturated with water
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