NOTE: The test port is part of the Evaporative Emissions (EVAP) canister purge outlet tube.
Disconnect the battery ground cable.
WARNING: THE EVAPORATIVE EMISSION SYSTEM CONTAINS FUEL VAPOR AND CONDENSED FUEL VAPOR. ALTHOUGH NOT PRESENT IN LARGE QUANTITIES, IT STILL PRESENTS THE DANGER OF EXPLOSION OR FIRE. DISCONNECT THE BATTERY GROUND CABLE FROM THE BATTERY TO MINIMIZE THE POSSIBILITY OF AN ELECTRICAL SPARK OCCURRING, POSSIBLY CAUSING A FIRE OR EXPLOSION IF FUEL VAPOR OR FUEL LIQUID IS PRESENT IN THE AREA. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN PERSONAL INJURY.
Disconnect the Evaporative Emission (EVAP) canister purge valve electrical connector.
Disconnect the EVAP return tube, control vacuum line and the EVAP canister purge outlet tube.