EGR Temperature Sensor: Testing and Inspection

EGR GAS TEMPERATURE SENSOR INSPECTION
1. DRAIN ENGINE COOLANT.
2. REMOVE V-BANK COVER.
3. REMOVE EGR VALVE. EGR Valve
4. REMOVE EGR VALVE ADAPTOR.
- Disconnect the EGR gas temp. sensor connector.



- Disconnect the PCV hose from the EGR valve adaptor.
- Remove the 2 bolts, 2 nuts, V-bank cover bracket, EGR valve adaptor and gasket.

5. REMOVE EGR GAS TEMP. SENSOR FROM EGR VALVE ADAPTOR.



- Mount the EGR valve adaptor in a vise.
- Remove the EGR gas temp. sensor from the adaptor.
- Remove the connector bracket from the sensor connector.

6. INSPECT EGR GAS TEMP. SENSOR.



- Using an ohmmeter, measure the resistance between the terminals.

EGR Gas Temp. Sensor Resistance:
- At 50°C (112°F): 64 - 97 K Ohms
- At 100°C (212°F): 11 - 16 K Ohms
- At 150°C (302°F): 2 - 4 K Ohms

- If the resistance is not as specified, replace the sensor.

7. REINSTALL EGR GAS TEMP. SENSOR TO EGR VALVE ADAPTOR.
- Mount the EGR valve adaptor in a vise.
- Install the EGR gas temp. sensor to the adaptor.

Torque: 20 Nm (200 kgf.cm, 14 ft.lb)

- Install the connector bracket to the sensor connector.

8. REINSTALL EGR VALVE ADAPTOR.
- Install a new gasket, the EGR valve adaptor and connector bracket, V-bank cover bracket with the 2 bolts and 2 nuts.

NOTICE: Do not touch the air intake chamber and adaptor surfaces of the gasket with your hand.

Torque: 19 Nm (195 kgf.cm, 14 ft.lb)

- Connect the PCV hose to the EGR valve adaptor.
- Connect the EGR gas temp. sensor connector.

9. REINSTALL EGR VALVE.
10. REINSTALL V-BANK COVER.
11. REFILL WITH ENGINE COOLANT.