Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002)
5. After the low-pressure gauge reaches 100.0 kPa (750 mmHg, 29.5 in Hg) or higher, evacuate the system for approx. 15 minutes.
6. After 15 minutes of evacuation, if the reading shows 100.0 kPa (750 mmHg, 29.5 inHg) or higher, close the valves on the both sides to stop the
vacuum pump.
7. Note the low-pressure gauge reading.
8. Leave it at least 5 minutes, and then check the low-pressure gauge reading for any changes. When a gauge indicator shows near to zero point, this
is a sign of leakage. Check pipe connector points, repair them, make sure there is no leakage by air bleeding.
9. Following the can tap operation instructions, install it to the refrigerant can.
10. Disconnect the center manifold hose from the vacuum pump, and connect the hose to the tap valve.