Engine Coolant Temperature (ECT) Sensor
Threaded into an engine coolant passage near thermostat housing, this sensor inputs coolant temperature to ECA. The signal from ECT affects following:
- Air/Fuel Ratio
- Idle Speed
- EGR Flow
- Purge Flow
- Fuel Pressure
- Boost Pressure (Turbo Engine)
- Ignition Timing Output Signal From ECA