BASE IDLE SPEED INSPECTION/ADJUSTMENT
Note. Base idle speed is not adjustable (except Sedona). The following procedure is for checking base idle speed only. If base idle speed is not within specification, check for dirty throttle bore(s), faulty Intake Air Control (IAC) motor or defective Engine Control Module (ECM).
Note. Before base idle speed inspection or adjustment, ensure base ignition timing is within specification. See BASE IGNITION TIMING table under BASE IGNITION TIMING INSPECTION.