Disconnect the vapor line from the EVAP two way valve (A). Connect it to the combination gauge kit and tube joint adapter and the vacuum pump (B) as shown.
Apply vacuum slowly and continuously while watching the gauge. The valve should open below 1.33 kPa (1.0 mmHg, 0.04 in.Hg).
If the vacuum hold below 1.33 kPa (1.0 mmHg, 0.04 in.Hg), go to
Step 5
.