5.0L EEC IV Tests W/Codes

• Diagnosis & Testing
  • Diagnostic Procedure
  • Test Equipment
  • Self-Test Connector Locations
• Quick Test
  • Description Of Tests
  • Preparation
  • Equipment Hook-Up
    • Analog Volt/Ohmmeter (VOM)
    • STAR Tester
  • Reading Self-Test Codes
    • Notes
    • Separator Pulse
    • Continuous Memory Codes
  • Key On/Engine Off (KOEO) Self-Test
    • Test Procedure
    • No Starts
    • KOEO Test Results
  • Timing Check
  • Key On Engine Running (KOER) Self-Test
    • Test Procedure
    • Engine ID Codes
    • KOER Test Results
  • Continuous Monitor Self-Test (Wiggle Test)
    • Notes
    • Establishing Continuous Memory Codes
    • Clearing Continuous Memory Codes
    • Continuous Memory Codes To Be Tested
    • Continuous Monitor (Wiggle) Test
  • Quick Test Diagnostic Aids
    • Dynamic Response Check
    • Output State Check
    • Failure Mode Effects Management (FMEM) - (Code 98)
  • Service Codes: 1988 Ford EEC-IV
    • Codes:
  • Symptom/Test Menu
  • Service Code/Test Menus
• DRIVEABILITY Tests
  • Intermittent No Start, Quits On Road With No Restart
  • Intermittent Surging At Steady Speed
  • Intermittent Stalls While Driving & On Restarts
  • Intermittent Bucking & Jerking
  • Intermittent Erratic Running Or Rough Idle
• Circuit Tests
  • How To Use Circuit Tests
  • Test A1 - No Start
  • Test A2 - Battery
  • Test A3 - Reference Voltage
  • Test B1 - Vane Air Temperature (Vat) Sensor
  • Test B2 - Air Charge Temperature (Act) Sensor
  • Test B3 - Mass Airflow Sensor (MAF)
  • Test B4 - EGRV Solenoid: EGR Valve Position (EVP) Sensor, EGR CTRL (EGRC) Solenoid & EGR Vent (EGRV) Solenoid
  • Test B5 - ECT (Engine Coolant Temperature) Sensor
  • Test B6 - Manifold Absolute Pressure/Barometric Pressure (Map/BP) Sensor
  • Test B7 - Knock Sensor
  • Test B8 - Throttle Position Sensor (TPS)
  • Test B9 - Vane Airflow (VAF) Sensor
  • Test B10 - Pressure Feedback EGR (PFE) & EGR Valve Regulator (EVR)
  • Test B11 - EGR Valve Position (EVP) & EGR Valve Regulator (EVR)
  • Test B12 - Vehicle Speed Sensor (VSS)
    • Notes
    • Automatic Transmission Equipped Vehicles
    • Manual Transmission Equipped Vehicles
  • Test B13 - Neutral Drive Switch (NDS) A/C Input
  • Test B15 - Power Steering Pressure Switch (PSPS)
  • Test C1 - Fuel Control
  • Test C2 - Fuel Pump Circuit
    • Notes
    • Fuel Pump Schematics
  • Test D1 - EGR On/Off Control
  • Test D3 - Air Management System
  • Test D4 - Canister Purge (CANP) Check
  • Test D5 - Idle Speed Control (Air By-Pass)
  • Test D6 - Shift Indicator Light (SIL) Circuits
  • Test D7 - Wide Open Throttle (Wot) A/C Cut-Out (WAC) & A/C
  • Test D9 - Converter Clutch Override (CCO) Shift Solenoid 3/4 -4/3 (SS 3/4-4/3)
    • Notes
    • The Following Steps Are With Codes 88 Or 89 Displayed
    • The following steps are with Codes 85 or 86 Displayed
  • Test D10 - Dynamic Response Test
    • Notes
    • Code 77 Displayed: System Failed to Recognize WOT Test
  • Test D11 - "Check Engine" Light (Malfunction Indicator)
  • Test D12 - Ignition Diagnostic Monitor (IDM)
  • Test D13 - Spark Timing Check
  • Test D14 - No Codes/Codes Not Listed
  • Test D15 - Code 15 KOEO Continuous
  • Test D16 - Output State Check Not Functioning
  • Test D17 - ECA Power Circuit
  • Test D18 - Re-Initialization Check
  • Test D19 - Key Power Check
  • Test D20 - System Check
  • Test D21 - AXOD Transaxle
  • Test D23 - Erratic Ignition
  • Test D25 - AXOD Transaxle Electrical System Diagnosis
    • Notes
    • AXOD Drive Cycle Test
• Wiring Diagrams