Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.
FOXWELL SD201 Automotive Smoke Machine Leak Detector Smoke Machine Leak Tester
Automotive Smoke Machine Leak Detector - 12V Vacuum Smoke Machine Leak Tester
Automotive Smoke Machine Leak Detector EVAP Fuel Smoke Machine Leak Tester Tool
ANCEL L100 Automotive Smoke Machine Leak Detector EVAP Vacuum Smoke Leak Tester
SD201 Automotive Smoke Machine Leak Detector Car EVAP Fuel Smoke Machine Tester