Component Tests and General Diagnostics

[Manifold Vacuum Check
1. The vehicle should be prepared as follows before the inspection.
- Engine coolant temperature: 80 - 95°C (176 - 203°F)
- Lights, electric cooling fan, and accessories: OFF
- Transaxle: Neutral (P for A/T)
2. Connect a tachometer. Refer to Ignition Timing.
3. [SOHC, DOHC- Non-Turbo]





1. Install a three-way joint to the vacuum hose connected between the air intake plenum and the fuel pressure regulator and connect a vacuum gauge to the joint.





2. [DOHC - Turbo] Install a three-way joint to the vacuum hose connected between the air intake plenum and the fuel pressure solenoid valve and connect a vacuum gauge.
4. Start the engine and check that idle speed is within the standard value range.
5. Check the manifold vacuum.
Limit: 60 kPa (18 in. Hg)