Mode 8: EVAP System Testing

This mode can close EVAP system with ignition on (engine off). The following components can be opened or closed:

• EVAP canister vent control can be opened.
• Vacuum cut valve by-pass valve can be closed.

During the following conditions, mode 8 cannot function:

• Low ambient temperature or low fuel temperature.
• Low battery voltage.
• Engine running or ignition switch in the OFF position.
• Too much pressure applied to EVAP system.