Operation CHARM: Car repair manuals for everyone.

Idle Speed: Adjustments

Fig. 28 Connecting jimper wire to intial set terminal.:





NOTE: Before adjusting the idle speed follow these directions:

1. Turn off all electrical accessories.
2. Connect tachometer to engine.
3. Start engine and run until it reaches normal operating temperature.
4. Connect jumper wire to terminals of initial set coupler Fig. 28.


Fig. 29 Connecting tachometer.:





NOTE: Connect tachometer to service coupler (black wire, black connector) at trailing side coil with igniter Fig. 29. If tachometer does not function correctly on trailing side coil with igniter, reconnect at leading side coil with igniter (black wire terminal). If using an inductive (secondary pickup) type tachometer, connect it only at the trailing side high tension leads.

Fig. 30 Adjusting air adjust screw.:






5. Check and adjust throttle sensor (refer to "COMPUTERIZED ENGINE CONTROLS").
6. Remove blind cap and adjust idle speed to 725-775 rpm (A/T: N Range) by turning air adjust screw, Fig. 30.




7. Install blind cap and disconnect jumper wire from initial set coupler Caution: If the jumper wire is not removed, the engine performance is reduced. Make certain the jumper wire is removed.