LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1983 >> Ranger 2.2 P >> Repair and Diagnosis >> Engine Performance >> System >> 2.8L EEC IV Testing >> Testing & Diagnosis >> Pinpoint Tests >> Test Instructions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Instructions

  1. DO NOT  run any test unless instructed to do so by the Quick Test. Make sure all non-EEC related faults are corrected. DO NOT  replace any part unless directed to do so. When more than one service code is received, start with lowest code first.
  2. DO NOT  measure voltage or resistance at control module or connect any test lamps to it, unless specified. All measurements are made by probing the REAR of the connector. Isolate both ends of a circuit and turn key off whenever checking for shorts or continuity, unless specified.
  3. Disconnect solenoids and switches from harness before measuring continuity, resistance or energizing with a 12 volt source. Follow each step in order until fault is found. After any repairs, check all component connections and repeat Quick Test.