Pressure Sensors
Illustration 59 g03710923
Schematic for the pressure sensors
The boost pressure sensor and the engine oil
pressure sensor are active sensors.
The boost pressure sensor provides the ECM with a
measurement of inlet manifold pressure in order to
control the air/fuel ratio. This will reduce the engine
smoke during transient conditions.
The operating range of the boost pressure sensors is
39 to 400 kPa (6 to 58 psi).
The engine oil pressure sensor provides the ECM
with a measurement of engine oil pressure. The ECM
can warn the operator of possible conditions that can
damage the engine. This includes the detection of an
oil filter that is blocked.
The operating range for the engine oil pressure
sensor . . . . . . . . . . . . 13 to 1200 kPa ((2 to 174 psi))
66 UENR4490-01
Engine Operation
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