Purge Control System

1. Disconnect the vacuum hose (red stripes) from the throttle body and connect it to a hand vacuum pump.
2. Plug the nipple from which the vacuum hose was removed.
3. When the engine is cold and hot, apply 400 mmHg (15.7 in.Hg) of vacuum while the engine is idling, and check the condition of the engine and the vacuum.

With engine running at 3000 rpm and coolant temperature at 40°C (104°F) or less, vacuum is maintained.

With engine running at idle and coolant temperature at 80°C (176°F) or higher, vacuum is maintained.
With engine running at 3000 rpm and coolant temperature at 80°C (176°F) or higher, vacuum will leak for approximately 3 minutes after the engine is started. After 3 minutes have elapsed, the vacuum will be maintained momentarily, after which it will again leak.

NOTE: The vacuum will leak continuously if the atmospheric pressure is approximately 580 mmHg (22.8 in.Hg) or less, or the temperature of the intake air is approximately 50°C (122°F) or higher.