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Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0443 Through P1212 >> DTC P0443: EVAP Canister Purge Volume Control Solenoid Valve >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0443 EVAP canister purge volume control solenoid valve A The canister purge flow is detected while the vehicle is stopped with the engine is running, even when EVAP canister purge volume control solenoid valve is completely closed.
  • EVAP control system pressure sensor
  • EVAP canister purge volume control solenoid valve (The valve is stuck open.)
  • EVAP canister vent control valve
  • EVAP canister
  • Hoses (Hoses are connected incorrectly or clogged.)
B The canister purge flow is detected during the specified driving conditions, even when EVAP canister purge volume control solenoid valve is completely closed.