HARDWARE AND WIRING
3.6.1
FACTORY-INSTALLED SENSORS
The sensors integrated into the factory-installed Engine Harness are listed in Table 3-99.
Sensor
Function
Camshaft Position Sensor (CMP Sensor)
Indicates a speci
fi
c cylinder in the
fi
ring order.
Crankshaft Position Sensor
(CKP Sensor)
Senses crankshaft position and engine speed for functions such
as fuel control strategy.
DPF Inlet Pressure Sensor
Sensor measures pressure between the Diesel Oxidation Catalyst
(DOC) and the Diesel Particulate Filter (DPF) in the aftertreatment
assembly located in the exhaust system of the vehicle.
DPF Outlet Pressure Sensor
Sensor measures pressure on the outlet of the after-treatment
device in the exhaust system of the vehicle. Located after the DPF
that is within the aftertreatment device.
DPF Outlet Temperature Sensor
Temperature measured at the outlet of the after-treatment system
that is installed within the exhaust system of the vehicle. It's
located after the DPF that is within the aftertreatment unit.
DOC Inlet Temperature
DOC Temperature In - Temperature measured at the inlet of
the after-treatment device in the exhaust system of the vehicle.
Located before the DOC that is within the after-treatment device.
DOC Outlet Temperature
Temperature measured between the DOC and the DPF in the
aftertreatment assembly located in the exhaust system of the
vehicle.
EGR Delta Pressure Sensor
EGR Delta P Sensor
Senses EGR pressure for EGR control.
EGR Temperature Sensor
Senses EGR exhaust temperature after EGR cooler. Used for
EGR system diagnosis.
Engine Coolant Temperature Sensor
(ECT Sensor)
Senses coolant temperature for functions such as engine
protection, fan control and engine fueling.
Engine Oil Pressure Sensor
(EOP Sensor)
Senses gallery oil pressure for functions such as engine protection.
Engine Oil Temperature Sensor
(EOT Sensor)
Senses oil temperature for functions such as reducing variation
in fuel injection and fan control.
Fuel Line Pressure Sensor
Senses fuel line pressure
Fuel Compensation Pressure Sensor
Compensates fuel line pressure
Intake Manifold Pressure Sensor
(IMP Sensor)
Senses turbo boost for functions such as smoke control and engine
protection.
Intake Manifold Temperature Sensor
(IMT Sensor)
Senses boost temperature
Supply Fuel Temperature Sensor
(SFT Sensor)
Senses fuel temperature for functions such as engine fueling.
Turbo Compressor Temperature
Out Sensor
Senses turbo out air temperature.
Turbo Speed Sensor (TSS)
Monitors turbo speed.
Water-in-Fuel Sensor
(MBE 900 only)
Detects water in the fuel
fi
lter that alerts the owner/driver that the
fuel
fi
lter needs to be dried out.
Table 3-99
Function of Factory-installed Sensors
3-92
All information subject to change without notice.
(Rev. 01/07)
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION