EEC-IV Theory/Operation
- Description
- Operation
- Notes
- ECA Input Sensors
- A/C Compressor Clutch Signal
- Air Charge Temperature (ACT) Sensor (All Engines Except 1.9L MPFI)
- Barometric Pressure (BP) Sensor (1.9 MPFI, 3.0L SHO, 3.8L SC SEFI & 5.0L MA SEFI)
- Brake On/Off (BOO) Switch (2.3L OHC MPFI, 2.5L CFI, 3.0L MPFI, 3.0L SHO SEFI, 3.8L SEFI, 3.8L SC SEFI & 5.0L SEFI)
- EEC Power Relay (1.9L CFI, 1.9L MPFI, 2.3L MPFI, 3.8L SEFI (RWD) & 5.0L SEFI)
- EGR Valve Position (EVP) Sensor (2.3L OHC MPFI, 2.5L CFI, 5.0L SEFI & 5.0L SEFI (MA)
- Engine Coolant Temperature (ECT) Sensor (All Engines)
- Idle Tracking Switch (ITS) (1.9L CFI & 2.5L CFI)
- Knock Sensor (2.3L OHC MPFI, 3.0L MPFI, 3.0L SHO SEFI & 3.8L SC SEFI)
- Manifold Absolute Pressure (MAP) Sensor (1.9L CFI, 2.3L OHC MPFI, 2.3L HSC MPFI, 2.5L CFI, 3.0L MPFI, 3.8L SEFI & 5.0L SEFI)
- Mass Airflow (MAF) Sensor (5.0L MA SEFI)
- Neutral Drive Switch (NDS) & Neutral Gear Switch (NGS)
- Heated Oxygen (HEGO) Sensor (All Engines)
- Profile Ignition Pick-Up (PIP) (All Engines)
- Power Steering Pressure Switch (PSPS) (2.3L OHC MPFI, 2.3L HSC MPFI, 2.5L CFI, 3.0L MPFI & 3.0L SHO SEFI)
- Pressure Feedback Electronic (PFE) EGR Valve (1.9L CFI, 2.3L HSC MPFI, 3.0L MPFI, 3.0L SHO SEFI, 3.8L MPFI & 3.8L SC SEFI)
- Self-Test Input (STI) (All Engines)
- Throttle Position (TP) Sensor (All Engines)
- Vane Airflow (VAF) Meter (1.9L MPFI)
- Vane Air Temperature (VAT)
- Vehicle Speed Sensor (VSS)
- ECA Output Controlled Components