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