Technical Definition:
Evaporative Emission (EVAP) System High Purge Flow
Trouble Code: P0496
Address: 0x0496
System: Powertrain
Subsystem: Auxiliary Emission Controls
Address: 0x0496
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:
Possible Causes:
- Faulty purge or vent solenod/valve
- Plugged EVAP canister
- Failed EVAP / fuel pressure sensor
- Poor electrical connection
- Short electrical circuit condition(Hyundai, Isuzu)
- Faulty canister purge valve
- Blocked vapor canister
- Faulty vent solenoid
- Leaking EVAP system hose (Hyundai)
- Faulty purge flow sensor (Kia, Mazda)
Possible Symptoms:
Evaporative Emission System Flow During Non-Purge
Possible Solutions:
OBD-II Trouble Code Type:
Diagnostic Step:
Tech Notes:
– Faulty EVAP canister vent valve
– Faulty EVAP canister pruge valve
– Plugged EVAP canister condition
– Faulty EVAP pressure sensor