LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1983 >> EXP Base, 1.6 2 >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - Multi-Point >> Testing & Diagnosis >> Idle Speed Control Solenoid
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Speed Control Solenoid

  1. Check and adjust curb idle if needed. Disconnect the ECA from the vehicle wiring harness. Connect an ohmmeter across terminals 9 and 10 of ECA plug J2. Resistance should be 6-14 ohms.
  2. If resistance is incorrect, check resistance at solenoid terminals. If resistance is correct (6-14 ohms), locate and repair short in wiring harness leading to solenoid. If resistance between terminals 9 and 10 is still incorrect, replace ISC solenoid. Reconnect ECA and ISC solenoid.
  3. Turn ignition on and check voltage at Red wire in ISC solenoid connector. If voltage is not 10.5 volts or greater, find and repair open circuit in Red wire leading to solenoid. Check for 10.5 or more volts at Purple wires in ISC connector. If not present, check for short circuits in Purple wires leading to ISC.
scientia non olet · About LEMON Manuals