LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2001 >> GS 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Variable Valve Timing Actuator Position Sensor >> Testing and Inspection
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Variable Valve Timing Actuator Position Sensor: Testing and Inspection

VVT SENSOR

INSPECTION

1. REMOVE V-BANK COVER

2. VVT Sensor (Bank 2): REMOVE INTAKE AIR CONNECTOR PIPE

3. VVT Sensor (Bank 1): DISCONNECT ENGINE WIRE PROTECTOR FROM UPPER INTAKE MANIFOLD AND BEARING CAP
a. Remove the No.3 V-bank cover bracket.
b. Disconnect the EVAP hose from VSV for EVAP.
c. Remove the VSV for EVAP from upper intake manifold.
d. Remove the No.2 V-bank cover bracket from upper intake manifold.
e. Disconnect the PCV hose from upper intake manifold.
f. Remove the 4 bolts, and disconnect the engine wire protector from the upper intake manifold and camshaft bearing cap.




4. INSPECT VVT SENSOR RESISTANCE

NOTE: "Cold" and "Hot in these sentences express the temperature of the sensors themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).

a. Disconnect the VVT sensor connectors.

Resistance:




b. Using a ohmmeter, measure the resistance between terminals.

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

c. Reconnect the VVT sensor connectors.

5. VVT Sensor (Bank 1): REINSTALL ENGINE WIRE PROTECTOR TO UPPER INTAKE MANIFOLD AND BEARING CAP

6. VVT Sensor (Bank 2): REINSTALL INTAKE AIR CONNECTOR PIPE

7. REINSTALL V-BANK COVER