Component Tests and General Diagnostics

Intake Manifold Vacuum

INSPECTION

1) Warm up the engine.
2) Remove the collector cover.

NOTE:
Follow the steps below when removing the collector cover.

(1) Pull up the two points at the rear (A).
(2) Pull up the two points at the front (B) while moving them forward.





3) Disconnect the brake booster vacuum hose from the intake manifold, and attach the vacuum gauge.





4) Keep the engine at idle speed and read the vacuum gauge indication.

NOTE:
Condition of engine inside can be diagnosed by observing the behavior of the vacuum gauge needle as described in table below.

Intake manifold vacuum (at idling, A/C OFF):
Standard
Less than -60.0 kPa (-450 mmHg, -17.72 inHg)

5) After inspection, install the related parts in the reverse order of removal.