Idle Speed/Throttle Actuator - Electronic: Adjustments

Fig. 7 Throttle Opener Adjustment, Engines With Manual Transaxle:

The throttle opener (idle-up actuator) described here controls the idle speed when either an electrical load or the power steering load is applied.

1. Make sure curb idle speed is within the specified speed (500 to 800 rpm for the first 300 miles or 600 to 800 rpm after 300 miles). If outside the specified limits, readjust the speed to the nominal specification.
2. By using the auxiliary lead wire, activate the throttle opener control solenoid valve, apply the intake manifold vacuum to the throttle opener and activate the throttle opener.
3. Open the throttle slightly (to an engine speed of about 2,000 rpm) and then slowly close it.
4. Adjust the engine speed to the specified speed (throttle opener set engine speed = 750 rpm) with the throttle opener adjusting screw. Fig. 7
5. After repeating step 3, check the engine speed.
6. Remove the auxiliary lead wire used in step 2 and reconnect the idle-up solenoid valve wiring.