Component Tests and General Diagnostics

INSPECTION
1. Remove the collector cover.
2. Idle the engine.
3. Disconnect the brake vacuum hose from intake manifold, and then install the vacuum gauge.
4. Keep the engine at idle speed and read the vacuum gauge indication.





By observing the gauge needle movement, internal condition of the engine can be diagnosed as described below.





Vacuum pressure (at idling, A/C "OFF"): -60.0 kPa (-450 mmHg, -17.72 inHg) or less