Checking Evaporative Emission System

Tests 1 - 4:

Tests 5 - 6:

SYMPTOM
CHECKING EVAPORATIVE EMISSION SYSTEM

POSSIBLE CAUSES
- EVAP canister
- EVAP purge hose (canister to fuel tank)
- EVAP purge hose (solenoid to canister)
- EVAP purge solenoid vacuum supply
- Proportional purge solenoid (stuck closed)
- Proportional purge solenoid defective