Engine: Testing and Inspection
MANIFOLD VACUUM CHECK1. Before inspection, set the vehicle in the following condition.
- Engine coolant temperature: 80 - 95°C (176 - 203°F)
- Lights, electric cooling fan and all accessories: OFF
- Transaxle: Neutral (P range on vehicles with A/T)
2. Connect the scan tool to the data link connector, or connect a primary voltage detection type tachometer to the connector through a paper clip.
3. Attach a three-way joint to the vacuum hose connected between the intake manifold plenum and the fuel pressure regulator and connect a vacuum gauge.
4. Start the engine, and check that the curb idle speed is within the standard value range.
Standard value: 700 ± 100 r/min
5. Check the manifold vacuum.
Limit: min. 60 kPa (18 in.Hg)