Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 64
6.1.3 WIF Switch Installation
Figure 6.1 Water In Fuel Switch 363-5084
The WIF switch is supplied connected to the bottom of the primary fuel filter.
The switch is supplied with a flying lead connection, which provides the
connection point for the customer to connect the switch to the ECM J1
connector. The part numbers required to connect the switch to the ECM are
shown in table 6.3.
Note: The switch is located in a vulnerable position, so every care
should be taken to prevent accidental damage occurring to it or the
flying lead attached to it.
Description
Perkins
Part Number
Supplier Part Number
Qty
Plug T406207 AMP 776429-3 1
Connector Socket (Gold) 2900A016 Deutsch 0462-201-1631 3
Table 6.3 Water In Fuel Switch Installation Parts List
The WIF switch is a three wire switch which requires connection to the ECM
J1 connector and is powered via fused ignition key switch supply as shown in
figure 6.2.
Figure 6.2 Water In Fuel Installation Wiring
6.2 Ambient Air Temperature Sensor
6.2.1 Ambient Air Temperature Sensor Operation
The air inlet temperature sensor is a passive sensor used to measure the
ambient air temperature. This temperature is used to regulate the engine
NRS system during a number of scenarios such as engine cold starting. This
sensor is a mandatory fit item, as the performance of the engine will be
severely affected if it is not installed. The air inlet temperature sensor must
not be exposed to temperatures in excess of 125
o
C, as temperatures above
the limit will exceed the temperature rating of the sensor connector.