User Manual

Illustration 39 g03360405
Schematic for the DPF differential pressure sensor for the 854E-E34TA (model JR) engine and 854F-E34T (model
JS) engine
The boost pressure sensor is an active sensor.
The boost pressure sensor provides the ECM with a
measurement of inlet manifold pressure to control the
air/fuel ratio. This will reduce the engine smoke
during transient conditions.
An engine oil pressure switch is installed to the
engine. While the engine is running and oil pressure
is detected, the switch will be open. When no oil
pressure is detected, the switch will be closed.
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
switch . . . . . . . . . . 30 kPa to 90 kPa ((4 psi to 13 psi))
UENR0623-02 43
Engine Operation
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