Intake Manifold Vacuum Controller: Testing and Inspection
MANIFOLD VACUUM CHECK1. Before inspection, set vehicles in the following condition:
^ Engine coolant temperature: 80-95°C (176-203°°F)
^ Lights, electric cooling fan and accessories: OFF
^ Transaxle: P range
^ In vehicles for Canada, the headlight, tail light, etc. will remain lit even when the lighting switch is turned OFF but this is no problem.
2. Connect the scan tool to the data link connector.
3. Remove the plug of the manifold vacuum connector assembly, and then connect a vacuum gauge.
4. Start the engine and check that idle speed is within specification.
Curb idle speed: 750 ± 100 r/min
5. Check the manifold vacuum.
Limit: min. 60 kPa (18 inch Hg.)