Contents: Models with four-cylinder engine ↓ Models with V6 engine ↓ Cylinder head CMP sensor ↓ Cylinder head CMP sensor ↓
Models with four-cylinder engine
Note: The CMP sensor is located on the left end of the cylinder head.
1. Disconnect the ground cable from the battery (see paragraph 1 of chapter 5).
2. If necessary, remove the air intake duct to gain more space to work (see paragraph "Air filter housing - removal and installation" in Chapter 4).
3. Disconnect the electrical connector of the CMP sensor (Fig. 4.3).
Fig. 4.3. To remove the CMP sensor from the cylinder head on a four-cylinder engine, disconnect the electrical connector (1) and check the sensor mounting bolt (2)
4. Unscrew the CMP sensor mounting bolt and remove the sensor. If you are going to install the same sensor, check the condition of the sealing ring. Replace the sealing ring if it is damaged.
5. Installation is performed in the reverse order of removal.
Models with V6 engine
Application: Two CMP sensors are provided, one for each intake camshaft (on Lexus and Toyota vehicles they are called WT-i sensors because their signals are used by the PCM to determine the optimum valve timing for the intake camshaft). The CMR sensors are located at the left end (on the driver's side) front and rear cylinder heads.
6. Disconnect the ground cable from the battery (see paragraph 1 of chapter 5).
7. Remove the engine cover (see paragraph "Intake manifold - removal and installation" in Chapter 2B).
Cylinder head CMP sensor
Note: The CMP sensor for the front cylinder head is located on the left front corner of the cylinder head, just under the cylinder head cover above the starter.
8. Disconnect the electrical connector of the CMP sensor (Fig. 4.8).
Fig. 4.8. To disconnect the electrical connector of the CMP sensor for the front cylinder head on VB engines, press the locking tab and disconnect the electrical connector
9. Unscrew the CMP sensor mounting bolt (Fig. 4.9) and remove the sensor.
Fig. 4.8. To remove the CMP sensor from the front cylinder head to the V6 engine, unscrew this bolt
10. Installation is performed in the reverse order of removal.
Cylinder head CMP sensor
Note: The CMP sensor for the rear cylinder head is located on the left rear corner of the cylinder head. It is difficult to access, but possible.
11. Loosen the left front wheel mounting nuts. Raise the front of the car and place reliable supports under it. Remove the wheel
12. Turn the steering wheel all the way to the right so that the brake disc is not in the way, and then, by inspecting the area between the upper rear part of the protruding section of the gearbox housing and the anti-roll bar, find the CMP sensor (Fig. 4.12).
Fig. 4.12. Access to the CMP sensor for the rear cylinder head is possible through the left wheel arch after removing the corresponding wheel. To remove the sensor, press the locking lug (1) and disconnect the electrical connector, then unscrew the sensor mounting bolt (2)
13. Disconnect the sensor electrical connector.
14. Unscrew the bolt and remove the sensor.
15. Installation is performed in the reverse order of removal.