Technical Definition:

Evaporative Emission (EVAP) System High Purge Flow

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

Specific Makes: