Engine Controls - Theory & Operation
- Introduction
- Computerized Engine Controls
- Control Unit Operation
- Circuit Opening Relay Operation
- EFI Main Relay Operation
- Input Devices
- Notes
- Airflow Meter (Es250)
- Airflow Meter (LS400)
- Air Temperature Sensor
- Cold Start Injector Time Switch
- Coolant Temperature Sensor
- Cam Position Sensor (LS400)
- Clutch Start Switch
- Crankshaft Angle Sensor (Es250)
- Engine Speed (Or Rpm) Sensor
- Exhaust Gas Temperature Sensor (LS400)
- Knock Sensor
- Neutral Start Switch
- Oxygen Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
- Output Signals
- Fuel Pump Operation
- Fuel Pressure Regulator Operation
- Pulsation Damper Operation
- Fuel Control
- Idle Speed
- Electronic Spark Advance (ESA) Operation
- Crankcase Ventilation Operation
- Dashpot System Operation
- Deceleration Fuel-Cut System Operation
- EGR System Operation
- Evaporative Emission System Operation
- Oxygen Sensor Heater Control Operation
- Self-Diagnostic System
- Check Engine Light
- Miscellaneous Controls