Component Tests and General Diagnostics

MANIFOLD VACUUM CHECK





1. Before inspection, check that the engine oil, starter and battery are normal. Also, set the vehicle to the following conditions:
^ Engine coolant temperature: 80 - 95°C (176 - 203°F)
^ Lights, and all accessories: OFF
^ Transaxle: Neutral
2. Connect an engine tachometer.
3. Attach a tee-fitting joint to the vacuum hose between the fuel pressure solenoid and the intake manifold plenum, and connect a vacuum gauge.
4. Start the engine and check that idle speed is within specification. Then check the vacuum gauge reading.
Idle speed: 800 ± 100 r/min
Minimum limit: 51 kPa (15 inch Hg)