System Testing

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 is disconnected.
3. Under the engine conditions shown below, check by applying vacuum from a hand vacuum pump.





When engine is cold-engine coolant temperature:
60°C (140°F) or less





When engine is hot-engine coolant temperature:
70°C (158°F) or higher

4. Connect the vacuum hose (red stripe) removed in procedure (1) to the original position of the P nipple on the throttle body.
5. Disconnect the purge air hose from the air intake hose, and plug the air intake hose. Then, connect the hand vacuum pump to the purge air hose.
6. Under the engine conditions shown below, check by applying vacuum from a hand vacuum pump.





When engine is hot-engine coolant temperature:
70°C (158°F) or higher