FixVault

Possible Causes

Possible Causes 
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE HOSE/TUBE OBSTRUCTION
EVAP SYSTEM LEAK
EVAPORATIVE SYSTEM INTEGRITY MONITOR (ESIM) SWITCH

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .