During a gas cap functional test, if there is no gas cap, what EVAP status should be entered in the EIS?

During a gas cap functional test, if there is no gas cap, what EVAP status should be entered in the EIS?

• A. Missing
• B. EVAP as 'missing'
• C. EVAP as 'disconnected'
• D. EVAP as 'present'

Answer: (B)

EIS EVAP status must reflect whether the EVAP hardware is installed. If there is no gas cap, there’s no cap to seal the system, so you mark the EVAP status as missing. This communicates that the component is not present, not that it’s disconnected or functioning normally. Choosing present would be incorrect because the cap isn’t there, and choosing disconnected would imply a fault or intentional disconnection rather than simple absence. So the correct entry is EVAP as 'missing'.

EIS EVAP status must reflect whether the EVAP hardware is installed. If there is no gas cap, there’s no cap to seal the system, so you mark the EVAP status as missing. This communicates that the component is not present, not that it’s disconnected or functioning normally. Choosing present would be incorrect because the cap isn’t there, and choosing disconnected would imply a fault or intentional disconnection rather than simple absence. So the correct entry is EVAP as 'missing'.