ENGINE ELECTRICAL 305
Figure 446 Manifold Absolute Pressure (MAP)
sensor
The MAP sensor is a variable capacitance sens
or.
The MAP sensor is installed left of the MAT se
nsor
in the intake manifold.
Figure 447 Exhaust Back Pressure (EBP) sensor
The EBP sensor is a variable capacitance sensor. The
EBP sensor is installed in a bracket mounted on the
water supply housing (Freon® compressor bracket).
Figure 448 Water In Fuel (WIF) sensor
The Water In Fuel sensor detects water in the fuel.
The WIF sensor is installed at the base of the fuel filter
housing.
Figure 449 Injection Pressure Regulator (IPR)
valve
The IPR valve is a pulse width modulated valve that
regulates the injection control pressure. The valve is
located on the rear of the high-pressure oil pump.
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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