Idle Up Control Valve: Testing and Inspection

Fig. 9 Idling stabilizer amplifier test chart.:

1. Start engine and operate A/C. Measure cut-in and cut-off RPM.
2. Using chart in Fig. 9, determine if cut-off and cut-in RPM is within specifications.

Fig. 10 Idle Stabilizer Amplifier Adjusting Screw Location.:

3. Adjust amplifier by turning knob of RPM resistor counterclockwise for high setting and clockwise for low setting, Fig. 10.