Idle Speed Control

1987-88 Pulsar, Sentra, Stanza, Stanza Wagon & 200SX w/CA20E Engine

Idle speed is controlled by the ECCS control unit, corresponding to engine operating conditions. The control unit senses engine condition and determines optimum idle speed at a specific water temperature and gear position. The control unit then sends an electronic signal corresponding to difference between best idle speed and actual idle speed to the auxiliary air control valve.