System Testing

Fig. 13 Connecting resistor.:

1. Disconnect electrical connector at intake air temperature sensor.
2. Connect a 2---3k ohm resistor to terminals of sensor connector Fig. 13..

Fig. 43 Engine speed chart.-----105:

3. Connect tachometer to engine.
4. Start engine and ensure engine speed is as in Fig. 43..
5. Stop engine and disconnect vacuum hose at pressure regulator.
6. Place finger on vacuum hose opening port, then start engine and ensure air is not sucked in at port for 90 seconds, but is sucked in after 90 seconds.