Intake Manifold Runner Position Sensor - G336-, Checking: General Description

The Intake Manifold Runner Position Sensor -G336- provides the Engine/Motor Control Module -J623- with the position of the intake manifold runner flaps. The Engine/Motor Control Module -J623- can then use actuators to adjust these flaps to be open or closed in order to provide longer or shorter intake runners depending on the ambient conditions available at the time; plus, depending on the specific engine speed, to increase engine efficiency.

Special tools and workshop equipment required 

• Multimeter.
• Wiring Diagram.
• Scan Tool.

Test requirements 

• Fuses OK.
• Battery voltage OK.
• Switch OFF all electrical and electronic accessories.
• Vehicles with automatic transmission, ensure the selector lever position is in "P".
• Vehicles with manual transmission, ensure the shifter lever position is in "N" with the parking brake applied.
• Observe all safety precautions: SAFETY PRECAUTIONS .
• View clean working conditions: CLEAN WORKING CONDITIONS .