Automatic Transaxle

Fig. 5 Idle Speed Control (ISC) Adjustment:

ADJUSTMENT CONDITIONS: Engine coolant temperature 85 - 95°C (185 - 205°F), lights, cooling fan and accessories OFF. Transaxle in N or P range.

ADJUSTMENT PROCEDURE:
1. Remove the carburetor from the engine.
2. Remove the concealment plug from the carburetor. Refer to IDLE SPEED AND MIXTURE ADJUSTMENT.
3. Reinstall the carburetor on the engine.
4. Relax the accelerator cable tension.
5. After switching ON the ignition and waiting at least 18 seconds, switch it OFF and then disconnect the connectors for the ISC actuator and the oxygen sensor.
6. Start the engine.
7. Check the ignition timing and adjust if necessary.
8. After racing the engine 2 or 3 times at 2,000 to 3,000 rpm, let it idle for at least 30 seconds and then adjust by the MAS for a CO concentration of 0.1 to 0.3 %.
9. Adjust the engine rpm by using the ISC adjustment screw.
Engine speed: 650 rpm for the first 500 km (300 miles)
700 rpm after 500 km (300 miles)
10. Close the SAS Fig. 5, until the engine rpm increases and then return the fixed SAS, find the point (touch point) where engine rpm does not decrease and then return the SAS 2/3 of a turn from that point.
11. After racing the engine a few times, check to be sure that the CO and engine rpm adjusted in steps (8) and (9) are within the prescribed range. If they are not, readjust as described in (8) and (9).
12. Adjust the tension of the accelerator cable. The cable should have enough play. If it does not, it will cause poor contact of the idle switch.
13. Connect the connectors of the ISC actuator and oxygen sensor as before.