Component Tests and General Diagnostics

Manifold Vacuum Check
1. 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: Neutral (P range on vehicles with A/T)
2. Connect the scan tool to the data link connector.





3. Attach a three-way joint to the vacuum hose between the fuel pressure regulator and the intake manifold, and connect a vacuum gauge.
Start the engine and check that idle speed is within specification.
Standard value: 800 ± 100 r/min
5. Check the manifold vacuum.
Limit: min. 60 kPa (18 in.Hg)