Purpose, Function
Ensures vacuum required for braking force to compensate for the decrease in intake manifold vacuum applied to the power brake unit caused by the retard intake valve closing.
Construction
The vacuum pump is installed to the rear housing.

For smooth vane rotation, a single-vane type vacuum pump has been adopted which is equipped with an engine oil lubrication passage.

Operation
Because the vacuum pump is directly engaged with the exhaust camshaft, the vane in the vacuum pump rotates together with the exhaust camshaft, and the vacuum chamber is expanded and vacuum is generated.

Vacuum generation mechanism

Vacuum Pump Removal/InstallationSide Sill Panel Removal [Panel Replacement]
Symbol Mark
Removal Procedure
Side sill (front side)
1. Rough cut the 2 locations indicated by (A) shown in the figure.
2. Drill the 18 locations indicated by (B) shown in the figure.
3. Remove the cabin side outer frame (outer side sill).
Side sill (component)
1. Rough cut the 3 l ...
Turbine/Input Shaft Speed Sensor, Output Shaft Speed Sensor [Fw6 A EL, Fw6 Ax
EL]
Purpose/Function
The turbine/input shaft speed sensor detects the rotation speed of the input
shaft (low clutch drum).
The output shaft speed sensor detects the rotation speed of the output shaft
(primary gear).
The turbine/input shaft speed sensor and output shaft speed ...
Engine Oil Pressure Warning Light
Purpose
The engine oil pressure warning light warns the driver that the engine oil
level is insufficient.
Function
When the instrument cluster receives the engine oil pressure warning light
request signal sent from the PCM via the CAN signal, it illuminates the engine
oi ...