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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.