Section 20 (CEC Diagnosing & Testing)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1987 Ford Ranger, 1987 Ford RV Cutaway, 1987 Ford Pickup, 1987 Ford Econoline, and 1987 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnosis & Testing
- Quick Test
- Diagnosis By Symptom Test
- Circuit Tests
- How To Use Circuit Tests
- Test A - No Start
- Test B - Vehicle Battery
- Test C - Reference Voltage
- Test D - Air Charge Temperature (Act) Sensor
- Test E - EVP, EGRC & EGRV
- Test F - Engine Coolant Temperature (ECT) Sensor
- Test G - Map/BP Sensor
- Test H - Knock Sensor
- Test I - Throttle Position Sensor (TPS)
- Test J - Pressure FDBK EGR (PFE) & EGR Valve Regulator (EVR)
- Test K - Vehicle Speed Sensor
- Test L - EGR Valve Position (EVP) & EGR Valve Regulator (EVR)
- Test M - Neutral A/C Switch
- Test O - Brake On/Off (Boo) Switch
- Test P - Power Steering Pressure Switch (PSPS)
- Test Q - 5.0L EFI Fuel Control
- Test R - 2.3L EFI Fuel Control
- Test S - 2.9L, 3.0L & 4.9L EFI Fuel Control
- Test T - Fuel Pump Circuit (Inertia Switch)
- Test U - EGR On/Off Check
- Test V - Air Management System
- Test W - Canister Purge (CANP) Check
- Test X - Idle Speed Control (By-Pass Air)
- Test BB - Shift Indicator Light (SIL)
- Test Cc - Wide Open Throttle
- Test Dd - Converter Clutch Override CCO
- Test Ee - Dynamic Response Test
- Test Ff - Ignition Diagnostic Monitor (IDM)
- Test GG - Spark Timing Check
- Test HH - No Codes/Codes Not Listed
- Test II - System Check
- Test JJ - Erratic Ignition
- Test KK - AXOD Transaxle
- DRIVEABILITY Test
- Wiring Diagrams