Town Car V8-302 5.0L (1987)
Idle Speed Control Bypass Air (ISC-BPA) Valve: Description and Operation
DC Motor Idle Speed Control Actuator
Fig. 5 DC motor idle speed control actuator
Control Actuator
The DC motor idle speed control actuator (DC-ISCA), Fig. 5, is mounted to the fuel charging assembly and controls the idle speed including, high
cam RPM, anti-diesel shut-off, dashpot and pre-positioning for the next engine start. The DC-ISCA is controlled by the EEC-IV system and includes an
integral idle tracking switch (ITS).
