CONTROL SYSTEM — Throttle Position Sensor Replacement / Engine Coolant Temperature Sensor
F2-152prose procedureThrottle position sensor adjustment (continued)
- 5Open the throttle valve slightly and catch the tang of the throttle body on the throttle position sensor plastic tabs. Adjust tang A on the throttle body with tab A on the throttle position sensor. Note tangs on the throttle body mate with the tab on the throttle position sensor on the side of the tab without a slot.
- 6Position the throttle position sensor on the throttle body so that the mounting holes align.
- 7Install and hand tighten the attaching screws.
- 8Release the throttle.
- 9Adjust the throttle position sensor output voltage and closed throttle position switch.
Replacement
- 1Turn the ignition switch OFF.
- 2Remove the throttle position sensor screws.
- 3Remove the throttle position sensor.
- 4Replace a new throttle position sensor and adjust it. (Refer to page F2-151.)
- 5Tighten the throttle position sensor screws. Tightening torque: 1.6—2.3 N·m {16—24 kgf·cm, 14—20 in·lbf}
| Specification | Value |
|---|---|
| Tightening torque (throttle position sensor screws) | ≈16 - 23N·m |
Tightening torque (throttle position sensor screws)
16 - 23N·m
ENGINE COOLANT TEMPERATURE SENSOR
Removal / Installation
WARNING
Removing the radiator cap or the coolant filler cap while the engine is running, or when the engine and radiator are hot is dangerous. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes. When you're sure all the pressure is gone, press down on the cap – still using a cloth – turn it, and remove it.
Removal / Installation
- 1Remove the radiator cap.
- 2Disconnect the engine coolant temperature sensor connector.
- 3Remove the engine coolant temperature sensor.
- 4Install in the reverse order of removal. Tightening torque: 16—23 N·m {1.6—2.4 kgf·m, 12—17 ft·lbf}Replace the washer.
| Specification | Value |
|---|---|
| Tightening torque (engine coolant temperature sensor) | ≈157 - 226N·m |
Tightening torque (engine coolant temperature sensor)
157 - 226N·m
Inspection
- 1Place the sensor in water with a thermometer and heat the water gradually.
- 2Measure resistance of the sensor by using an ohmmeter.
- 3If not as specified, replace the engine coolant temperature sensor.
Engine coolant temperature sensor resistance
20°C {68°F}
Resistance (kΩ)2.2—2.7
80°C {176°F}
Resistance (kΩ)0.29—0.35