2002 LAND ROVER DISCOVERY fuel filter location

CONTENTS
6CONTENTS
EGR systems .................................................................................................................................. 17-1-10
REPAIRS
Modulator - EGR ........................................................................................................................... 17-1-13
Inlet Throttle (ILT) Modulator .......................................................................................................... 17-1-13
Valve - EGR - Pre EU3 models ...................................................................................................... 17-1-14
Valve - EGR - EU3 models ............................................................................................................. 17-1-15
EMISSION CONTROL - V8 ....................................................................... 17-2-1
DESCRIPTION AND OPERATION
Crankcase emission control system ............................................................................................... 17-2-1
Exhaust emission control ................................................................................................................ 17-2-2
Evaporative emission system component layout ............................................................................ 17-2-3
Evaporative emission system (with positive pressure leak detection) component layout (NAS only) 17-2-4
Evaporative emission system control diagram ............................................................................... 17-2-5
Secondary air injection system component layout.......................................................................... 17-2-6
Secondary air injection system control diagram ............................................................................. 17-2-8
Emission Control Systems .............................................................................................................. 17-2-9
Crankcase emission control system ............................................................................................... 17-2-9
Exhaust emission control system ................................................................................................... 17-2-10
Evaporative emission control system ............................................................................................. 17-2-15
Secondary air injection system ....................................................................................................... 17-2-26
Crankcase emission control operation............................................................................................ 17-2-33
Exhaust emission control operation ................................................................................................ 17-2-34
Evaporative emission control operation .......................................................................................... 17-2-38
Secondary air injection system ....................................................................................................... 17-2-42
REPAIRS
Canister - EVAP ............................................................................................................................ 17-2-43
Canister - EVAP - Models with Fuel Leak Detection Pump - up to 03MY ...................................... 17-2-43
Canister - EVAP - Models with Fuel Leak Detection Pump - from 03MY ....................................... 17-2-44
Valve - purge control ..................................................................................................................... 17-2-46
Solenoid - evap canister vent solenoid (CVS) valve ..................................................................... 17-2-46
Sensor - heated oxygen (HO2S) - pre-catalytic converter .............................................................. 17-2-47
Sensor - heated oxygen (HO2S) - post-catalytic converter ............................................................ 17-2-48
Control Valve - Secondary Air Injection (SAI) ............................................................................... 17-2-49
Reservoir - Vacuum - Secondary Air Injection (SAI) - up to 03MY ................................................. 17-2-49
Reservoir - vacuum - Secondary Air Injection (SAI) - from 03MY .................................................. 17-2-50
Pump - Air - Secondary Air Injection (SAI) ..................................................................................... 17-2-50
Air Manifold - LH - Secondary Air Injection (SAI) ........................................................................... 17-2-51
Air Manifold - RH - Secondary Air Injection (SAI) .......................................................................... 17-2-51
Solenoid - Vacuum - Secondary Air Injection (SAI) ...................................................................... 17-2-52
Pipe - Secondary Air Injection (SAI) .............................................................................................. 17-2-52
Pump - Fuel Leak Detection - up to 03MY...................................................................................... 17-2-54
Pump - fuel leak detection - from 03MY ......................................................................................... 17-2-54
Filter - fuel leak detection pump - up to 03MY ................................................................................ 17-2-55
Filter - fuel leak detection pump - from 03MY ................................................................................. 17-2-55
ENGINE MANAGEMENT SYSTEM - Td5 ................................................ 18-1-1
DESCRIPTION AND OPERATION
Engine management component location - passenger compartment ............................................ 18-1-2
Engine management component location - engine compartment .................................................. 18-1-3
Engine management block diagram ............................................................................................... 18-1-4
Description ...................................................................................................................................... 18-1-6

CONTENTS
CONTENTS 7
Operation ........................................................................................................................................ 18-1-38
ADJUSTMENTS
Glow plug ....................................................................................................................................... 18-1-45
REPAIRS
Engine control module (ECM) ........................................................................................................ 18-1-47
Sensor - engine coolant temperature (ECT) ................................................................................. 18-1-47
Sensor - crankshaft (CKP) .............................................................................................................. 18-1-48
Air filter assembly ........................................................................................................................... 18-1-48
Element - air filter ............................................................................................................................ 18-1-49
Sensor - fuel temperature .............................................................................................................. 18-1-50
Sensor - mass air flow (MAF) ....................................................................................................... 18-1-51
Sensor - combined MAP and IAT ................................................................................................. 18-1-51
Sensor - ambient air pressure (AAP) ............................................................................................ 18-1-52
Element - fuel filter ........................................................................................................................ 18-1-53
Cooler - fuel .................................................................................................................................. 18-1-53
Sensor - Throttle position (TP) ........................................................................................................ 18-1-54
Turbocharger ................................................................................................................................ 18-1-55
Intercooler ..................................................................................................................................... 18-1-56
Valve - solenoid boost control ........................................................................................................ 18-1-58
Regulator - fuel pressure .............................................................................................................. 18-1-59
Glow plugs ...................................................................................................................................... 18-1-60
Injectors .......................................................................................................................................... 18-1-61
Switch - cruise control (on/off) ........................................................................................................ 18-1-62
Switch - cruise control (set/resume) ................................................................................................ 18-1-63
Switch - clutch ................................................................................................................................. 18-1-63
ENGINE MANAGEMENT SYSTEM - V8 .................................................. 18-2-1
DESCRIPTION AND OPERATION
Engine management component location - Passenger compartment ............................................ 18-2-2
Engine management component location - Engine compartment .................................................. 18-2-3
Engine management block diagram ............................................................................................... 18-2-4
Description - engine management .................................................................................................. 18-2-6
Operation - engine management .................................................................................................... 18-2-43
DESCRIPTION AND OPERATION
Cruise control component layout .................................................................................................... 18-2-55
Cruise control block diagram .......................................................................................................... 18-2-56
Description - cruise control ............................................................................................................. 18-2-57
Operation - cruise control................................................................................................................ 18-2-66
ADJUSTMENTS
Cable - throttle ............................................................................................................................. 18-2-69
Cable - cruise control .................................................................................................................... 18-2-69
REPAIRS
Spark plugs .................................................................................................................................. 18-2-71
Coil - ignition ................................................................................................................................. 18-2-71
Engine control module (ECM) ......................................................................................................... 18-2-72
Sensor - engine coolant temperature (ECT) ................................................................................ 18-2-73
Sensor - crankshaft position (CKP) ............................................................................................... 18-2-74
Sensor - radiator temperature ....................................................................................................... 18-2-75
Sensor - camshaft position (CMP) ................................................................................................. 18-2-76

CONTENTS
8CONTENTS
Knock sensor (KS) .......................................................................................................................... 18-2-76
Air cleaner assembly .................................................................................................................... 18-2-77
Element - air filter .......................................................................................................................... 18-2-78
Cable - throttle ................................................................................................................................ 18-2-78
Sensor - Mass Air Flow (MAF) ...................................................................................................... 18-2-79
Throttle Body .................................................................................................................................. 18-2-80
Plenum chamber............................................................................................................................. 18-2-81
Sensor - throttle position (TP) ....................................................................................................... 18-2-82
Valve - idle air control (IACV) ....................................................................................................... 18-2-82
Injectors ......................................................................................................................................... 18-2-83
Actuator - cruise control ................................................................................................................ 18-2-84
Vacuum control unit - up to 03MY .................................................................................................. 18-2-85
Vacuum control unit - from 03MY ................................................................................................... 18-2-85
Cable - cruise control ..................................................................................................................... 18-2-86
Switch - cruise control (on/off) ........................................................................................................ 18-2-87
Switch - cruise control (set/resume) .............................................................................................. 18-2-87
Switch - clutch pedal - cruise control ............................................................................................ 18-2-88
ECU - Cruise control ..................................................................................................................... 18-2-88
FUEL DELIVERY SYSTEM - Td5 ............................................................. 19-1-1
DESCRIPTION AND OPERATION
Fuel delivery system component location ....................................................................................... 19-1-1
Fuel tank and breather components ............................................................................................... 19-1-2
Description ...................................................................................................................................... 19-1-3
Operation ........................................................................................................................................ 19-1-11
ADJUSTMENTS
Fuel system purging ....................................................................................................................... 19-1-13
Fuel tank - drain .............................................................................................................................. 19-1-13
REPAIRS
Switch - inertia - fuel cut-off ............................................................................................................ 19-1-15
Pump - fuel .................................................................................................................................... 19-1-15
Tank - fuel ..................................................................................................................................... 19-1-17
Solenoid - fuel filler flap release .................................................................................................... 19-1-18
Switch - fuel filler flap release - up to 03MY ................................................................................... 19-1-18
Switch - fuel filler flap release - from 03MY .................................................................................... 19-1-19
FUEL DELIVERY SYSTEM - V8 ............................................................... 19-2-1
DESCRIPTION AND OPERATION
Fuel delivery system ....................................................................................................................... 19-2-1
Fuel tank and breather components (all except NAS) .................................................................... 19-2-2
Fuel tank and breather components (NAS) .................................................................................... 19-2-3
Description ...................................................................................................................................... 19-2-4
Operation ........................................................................................................................................ 19-2-10
ADJUSTMENTS
Fuel tank - drain .............................................................................................................................. 19-2-11
REPAIRS
Switch - inertia - fuel cut-off ............................................................................................................ 19-2-13
Pump - fuel .................................................................................................................................... 19-2-13
Tank - fuel ...................................................................................................................................... 19-2-15
Filler tube - fuel ............................................................................................................................. 19-2-16

GENERAL INFORMATION
03-5
Electricity and heating:
lkeep doors and windows closed in the winter;
lswitch off machinery or lights when not needed;
luse energy efficient heating systems;
lswitch off computers and photocopiers when
not needed.
Fuel:
ldon't run engines unnecessarily;
lthink about whether journeys are necessary and
drive to conserve fuel.
Water:
ldon't leave taps and hose pipes running;
lmend leaks quickly, don't be wasteful.
Compressed air:
ldon't leave valves open;
lmend leaks quickly;
ldon't leave the compressor running when not
needed.
Use of environmentally damaging materials:
lcheck whether a less toxic material is available.
Handling and storage of materials:
lhave the correct facilities available for handling
liquids to prevent spillage and wastage as listed
above;
lprovide suitable locations for storage to prevent
frost damage or other deterioration.
Waste Management
One of the major ways that pollution can be reduced
is by the careful handling, storage and disposal of all
waste materials that occur on sites. Legislation
makes it illegal to dispose of waste materials other
than to licensed waste carriers and disposal sites.
This means that it is necessary to not only know what
the waste materials are, but also to have the
necessary documentation and licenses.
Handling and storage of waste
Ensure that waste materials are not poured down the
drain or onto soils. They should be stored in such a
way as to prevent the escape of the material to land,
water or air.
They must also be segregated into different types of
waste e.g. oil, metals, batteries, used vehicle
components. This will prevent any reaction between
different materials and assist in disposal.
Disposal of waste
Disposal of waste materials must only be to waste
carriers who are licensed to carry those particular
waste materials and all the necessary
documentation must be completed. The waste
carrier is responsible for ensuring that the waste is
taken to the correct disposal sites.Dispose of waste in accordance with the following
guidelines.
lFuel, hydraulic fluid, anti-freeze and oil: keep
separate and dispose of to specialist contractor.
lRefrigerant: collect in specialist equipment and
reuse.
lDetergents: safe to pour down the foul drain if
diluted.
lPaint, thinners: keep separate and dispose of
to specialist contractor.
lComponents: send back to supplier for
refurbishment, or disassemble and reuse any
suitable parts. Dispose of the remainder in
ordinary waste.
lSmall parts: reuse any suitable parts, dispose
of the remainder in ordinary waste.
lMetals: can be sold if kept separate from
general waste.
lTyres: keep separate and dispose of to
specialist contractor.
lPackaging: compact as much as possible and
dispose of in ordinary waste.
lAsbestos-containing: keep separate and
dispose of to specialist contractor.
lOily and fuel wastes (e.g. rags, used spill kit
material): keep separate and dispose of to
specialist contractor.
lAir filters: keep separate and dispose of to
specialist contractor.
lRubber/plastics: dispose of in ordinary waste.
lHoses: dispose of in ordinary waste.
lBatteries: keep separate and dispose of to
specialist contractor.
lAirbags - explosives: keep separate and
dispose of to specialist contractor.
lElectrical components: send back to supplier
for refurbishment, or disassemble and reuse
any suitable parts. Dispose of the remainder in
ordinary waste.
lElectronic components: send back to supplier
for refurbishment, or disassemble and reuse
any suitable parts. Dispose of the remainder in
ordinary waste.
lCatalysts: can be sold if kept separate from
general waste
lUsed spill-absorbing material: keep separate
and dispose of to specialist contractor.
lOffice waste: recycle paper and toner and ink
cartridges, dispose of the remainder in ordinary
waste.

FUEL DELIVERY SYSTEM - TD5
DESCRIPTION AND OPERATION 19-1-1
FUEL DELIVERY SYST EM - Td5 DESCRIPTION AND OPERAT ION
Fuel delivery system component
location
A = Pre EU3 models
1HP stage
2LP stage
3Filters
4Jet pump
5Fuel pump and fuel gauge sender assembly
6LP return connection
7LP feed connection
8HP feed connection9Air bleed connection
10Fuel filter
11Water sensor
12Fuel cooler
13Fuel pressure regulator (EU3 models)
14Electronic unit injectors
15Fuel pressure regulator (pre EU3 models)
16Electronic unit injectors

FUEL DELIVERY SYSTEM - TD5
DESCRIPTION AND OPERATION 19-1-7
The fuel pressure regulator is located in a cast alloy housing which is attached to the rear right hand corner of the
cylinder head with three flanged bolts and sealed with a metal gasket. On pre EU3 models there are two ports in the
housing that connect with ports in the cylinder head for fuel pressure feed and return. On EU3 models there is a port
in the housing that connects with a port in the cylinder head for fuel pressure feed and a single external port for fuel
return. A gauze filter is located in the pressure feed port in the cylinder head and filters the fuel before it reaches the
injectors. The filter is a fit for life item but can be changed if required. An 'O' ring is located in a recess in the cylinder
head and provides additional sealing for the pressure feed port between the gauze filter, the cylinder head and the
housing.
A union and pipe is attached to the feed port in the housing and connects with a quick release coupling to the fuel
pressure feed pipe from the fuel pump. A second union and hose is located in the return port and provides the fuel
return connection to the fuel cooler. A third port provides location for the fuel temperature sensor which is sealed to
the housing with a bonded seal. The fuel temperature sensor is used by the Engine Control Module (ECM) for engine
management.
The fuel pressure regulator is located in a machined port in the lower part of the housing. The regulator is sealed in
the housing with two 'O' rings and secured with an internal circlip.
The regulator maintains the fuel pump delivery pressure at 4 bar (58 lbf.in
2). When the fuel pressure exceeds 4 bar
(58 lbf.in2), the regulator opens and allows fuel to return to the fuel tank via the fuel cooler. The fuel returned from the
regulator is directed back into the fuel filter before being drawn by the high pressure stage of the fuel pump and
directed back to the injectors. A special tool can be attached to the regulator housing fuel feed port and allows for the
fitment of a suitable gauge to measure fuel pump delivery pressure.
Injectors
1Solenoid housing
2Electrical connector
3Push rod socket
4Push rod return spring
5Housing
6Fuel delivery port7Fuel return port
8Nozzle cap nut
9Copper washer
10Nozzle
11'O' ring
12Cap screw 2 off

INSTRUMENTS
88-2 DESCRIPTION AND OPERATION
Instrument component location - Engine
compartment / underneath vehicle
1ECM (diesel models)
2Alternator
3Glow plugs
4Transmission temperature sensor
5Water in fuel filter sensor
6Fuel tank sender unit
7Differential lock switch – vehicles up to 03
model year8Differential lock switches – vehicles from 03
model year (where fitted)
9Parking brake switch
10Brake fluid level switch
11Oil pressure switch