Frelander 2. Manual — part 244
Engine Cooling - TD4 2.2L Diesel - Engine Coolant Level Switch
Removal and Installation
Removal
• NOTE: Removal steps in this procedure may contain installation details.
Torque: 10 Nm
1.
2.
Installation
To install, reverse the removal procedure.
1.
Fuel Charging and Controls - I6 3.2L Petrol -
General Specification
Item
Specification
Recommended fuel:
UK, Europe
91 - 98 RON
USA
Minimum 91 CLC or AKI
Fuel injectors:
Make
Denso
Fuel Pressures
Component
bar
psi
Fuel rail - normal operating conditions - not using IDS
3.7
54
Fuel rail - normal operating conditions - using IDS
4.8
68
Fuel rail - engine off - using IDS
2.8 to 3.2
40 to 46
Fuel rail - cold start - using IDS
6.5
94
Torque Specifications
Description
Nm
lb-ft
Fuel injector clamp plate bolts
6
5
Fuel pressure regulator bolts
6
5
Fuel pump drive module retaining bolts
10
7
Fuel rail bolts
10
7
Fuel rail pressure sensor
6
5
Schreader valve bolts
6
5
Throttle body screws
8
6
Fuel Charging and Controls - I6 3.2L Petrol - Fuel Charging and Controls
Description and Operation
Authoring Template
COMPONENT LOCATION
Item
Part Number
Description
1
-
Fuel rail
2
-
Fuel injector
3
-
Fuel line
4
-
Fuel rail pressure and fuel temperature sensor
OVERVIEW
The fuel pump module, located in the fuel tank, is electronically regulated by the Engine Management System (EMS) to
provide controlled pressure in the fuel rail
For additional information, refer to:
Fuel Tank and Lines
(310-01A Fuel Tank and Lines - I6 3.2L Petrol, Description and
Operation).
.
Supplying the correct amount of fuel as required by the engine at any given moment, eliminates the requirement for
additional pipes returning excess fuel to the fuel tank. The benefits of this type of system are:
Reduced load on the electrical system
Improved fuel economy
Eliminates the effects of fuel pressurization and depressurization
Eliminates the effects of engine-heat causing extra fuel vapor being generated in the fuel tank by returning fuel
Closed-loop Pulse Width Modulation (PWM) control, of the fuel pump module, via the Engine Control Module (ECM)
regulates the amount of fuel supplied by the fuel pump to the fuel rail. The ECM receives signals from the combined fuel
rail pressure and fuel temperature sensor, located on the fuel rail to indicate the pressure of fuel in the fuel rail. In
response to these signals, plus other engine and driver demand signals, the ECM calculates the amount of fuel required
and requests the fuel pump module to vary the fuel pump delivery to suit the engine’s requirements.
For additional information, refer to:
Electronic Engine Controls
(303-14A Electronic Engine Controls - I6 3.2L Petrol,
Description and Operation).
The fuel pump maintains a fuel rail pressure 3.8 bar above manifold depression under normal operating conditions, though
this is programmed to rise to 4.2 bar in response to either:
cold start conditions, to improve fuel vaporization
cold fuel conditions, as the colder the fuel the higher its viscosity
The fuel rail has an integrated pulsation damper and a connection for draining the fuel system.
The injectors supplied by the fuel rail; each have 4 micro-nozzles capable of injecting up to 18 mg of fuel under high-load
conditions, the injectors also provide precision fueling across all engine speed and load conditions.
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