Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1993 Ford Probe Base, StandardFACTORY OEM SERVICE PROCEDURE
Engine Controls - System/Component Tests - EEC-IV
- Introduction
- Air Induction Systems
- Computerized Engine Controls
- Engine Sensors & Switches (Pcm Inputs)
- Notes
- A/C Cutout
- Air Charge Temperature (Act) Sensor
- Barometric Pressure (BARO) Sensor
- Cylinder Identification (CID)
- Engine Coolant Temperature (ECT) Sensor
- EGR Valve Position (EVP) Sensor
- EGR Vacuum Regulator (EVR) Solenoid
- Heated Gas Oxygen Sensor (Ho2S)
- Inertia Fuel Shutoff (Ifs) Switch
- Knock Sensor (KS)
- Mass Airflow (MAF) Sensor
- Power Steering Pressure Switch (PSPS)
- Pressure Feedback ELEC. (PFE) EGR Sensor/Delta PFE Sensor
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Modules, Relays & Solenoids
- Fuel System
- Idle Control System
- Ignition System
- Notes
- Di System
- Preliminary Check
- Test Equipment
- Diagnostic Aids
- No Spark From Coil Secondary (Distributor Mounted ICM)
- No Spark From Coil Secondary (Remote Mounted ICM)
- No Start With Spout Conn. Disconnected (Remote Mounted ICM)
- Continuous Memory Code 18 Or 212 (IDM Missing)
- KOER Code 18 Or 213 (Incorrect Ignition Timing)
- EI System (Low Data Rate) (Mustang 2.3L)
- Pinpoint Test A
- Pinpoint Test B: Code 222
- Pinpoint Test C: Code 218
- Pinpoint Test D: Code 224
- Pinpoint Test E: Code 213 Spout Circuit Shorted Or Open
- Pinpoint Test F: Code 213/412 Or No Codes & Lack Of Power
- EI System (Low Data Rate) (3.0L SHO, 3.2L & 3.8L SC)
- Pinpoint Test B: Code 212
- Pinpoint Test C: Code 214
- Pinpoint Test D: Code 215, 216 Or 217
- Pinpoint Test E: Code 49 Or 213
- Pinpoint Test F
- Pinpoint Test G
- EI System (High Data Rate) - (Escort 1.9L & Tracer 1.9L)
- Pinpoint Test C: Code 213, Lack Of Power Or Poor Fuel Economy
- Pinpoint Test D: Code 215 Or 216
- EI System (High Data Rate) (3.0L Flexible Fuel)
- Pinpoint Test B: Code 212 Or 226
- Pinpoint Test C: Code 213 Or Lack Of Power/Poor Fuel Economy
- Pinpoint Test D: Code 215, 216, 217 Or 232
- EI System (High Data Rate - 4.6L)
- Pinpoint Test C: Code 213 Or No Power Or Poor Fuel Economy
- Pinpoint Test D: Code 215, 216, 217 Or 238
- Emission Systems & Sub-Systems
- Air Injection
- Air Supply Pump
- Air Silencer/Filter (Air Pump & Pulse Air Inlet)
- Air By-Pass Valve (Normally Closed)
- Air Check Valve
- Air Control Solenoid Valve(s)
- Air Supply Control Valve
- Air Control Valve (Switch-Relief)
- Air Pump Resonator
- Combination Air By-Pass/Air Control Valve
- Thermactor Idle Vacuum (TIV) Valve
- Vacuum Control Valve (VCV)
- Electrical Vacuum Control Valve
- Vacuum Check Valve
- Vacuum Reservoir
- Pulse Air Valve
- Exhaust Gas RECIRCULATION (EGR)
- Fuel Evaporation
- Positive Crankcase Ventilation (PCV)
- Air Injection
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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