Initial Inspection and Diagnostic Overview

Inspection and Verification
1. Verify that the concern is with the Evaporative Emission (EVAP) system.
2. Inspect to determine if any of the following mechanical concerns apply:

VISUAL INSPECTION CHART
Mechanical
- Improperly installed fuel filler cap
- Loose or disconnected components
- Damaged EVAP canister or vent solenoid

3. If the concern remains after the inspection, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures