1995 LAND ROVER DISCOVERY ECU

MFI
23
REPAIR
13.Remove back two bolts and nut plates securing
fuel tank cradle.
14.Remove front nuts, bolts and washers. Remove
fuel tank cradle.
15.With assistance, tilt right hand side of tank
upwards and manoeuvre tank through chassis to
remove.
Refit
16.Reverse removal procedure. Ensuring sealing
ring, fuel pipe and hose connections are secure.
17.Run engine, check all connections for fuel leaks.

MFI
1
SPECIFICATIONS, TORQUE TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
Air-Bypass valve (stepper motor) 20...............................................................
All flexible hose securing clamps 1,3...............................................................
Fuel feed pipe - hose to fuel rail 22.................................................................
Fuel filter 31....................................................................................................
EVAPORATIVE LOSS CONTROL SYSTEM
All flexible hose securing clamps 1,7...............................................................
METRIC Nm
M5 6...........................................................................
M6 9...........................................................................
M8 25...........................................................................
M10 45.........................................................................
M12 90.........................................................................
M14 105.........................................................................
M16 180.........................................................................
UNC / UNF
1/4 9...........................................................................
5/16 24.........................................................................
3/8 39...........................................................................
7/16 78.........................................................................
1/2 90...........................................................................
5/8 136...........................................................................
NOTE: Torque values above are for all screws and bolts used except for those specified.

19FUEL SYSTEM
10
DESCRIPTION AND OPERATION ADD: 09/95 DESCRIPTION AND OPERATION - ADVANCED
EVAPS
1.Fuel filter
2.Fuel pump and gauge sender unit
3.Fuel feed hose
4.Fuel return hose
5.Fuel filler neck assembly
Fuel Tank Assembly
The fuel tank consists of a moulded High Density
Polyethylene (HDPE) fuel cell into which is fitted an
electric fuel pump and four roll-over valves. The pump
is a self priming ñwet" type where the motor is
immersed in fuel. The pump assembly is sealed to the
tank with a rubber seal and secured in place using a
coated steel locking ring. The pump also incorporates
a fuel tank pressure sensor in the top flange.
NOTE: If the pump is removed, a new seal
must always be fitted.

SFI
11
DESCRIPTION AND OPERATION ADD: 09/95 Fuel Filler Neck Assembly
The filler neck consists of a stainless steel upper
section and a convolute nylon lower section. The
nylon lower is joined at one end to the tank and at the
other to the stainless upper section where both joints
utilise a short piece of rubber hose. The joint at the
fuel tank is secured using a spring assisted hose clip
which has a shear off cap.
NOTE: The spring assisted clip must never
be re-used, if removed a new clip of the
same type must be fitted.
Tank vent connections are achieved using serviceable
plastic quickfit connectors. The filler cap is tethered to
the body of the vehicle. Only a cap of this type must
be used as a replacement.Fuel Lines
The fuel lines consist of two coated steel lines fitted
along the length of the chassis from the fuel pump at
the rear of the vehicle to the connections at the fuel
rail on the engine, via a fuel filter on the feed line.
Connections at the pump are metal quickfits, while
those at the filter and fuel rail are threaded unions
utilising "O" rings for effective sealing.
NOTE: When the fuel filter is serviced or
the fuel rail joints are disconnected, new
"O" rings must always be fitted.
Connections at the fuel rail are made using "Saginaw"
screw thread type connectors with "O" rings as the
sealing medium. The fuel lines in the engine
compartment are made from a braided nylon material.
NOTE: This material must not be clamped
or kinked as this impairs its performance.

SFI
1
REPAIR CAMSHAFT POSITION SENSOR (CMP SENSOR)
Service repair no - 19.22.07
Remove
1.Disconnect battery negative lead.
2.Raise vehicle on a ramp.
3.Release sensor mutiplug from clip located on
front cover.
4.Disconnect multiplug.
5.Remove bolt securing sensor.
6.Remove sensor from front cover.
7.Remove 'O' ring from sensor and discard.Refit
8.Clean sensor and mating face on front cover.
9.Lubricate NEW 'O' ring and fit to sensor.
10.Engage CMP sensor in front cover location.
Secure with bolt. Tighten to
8 Nm.
11.Connect sensor multiplug and secure to bracket.
12.Lower ramp.
13.Reconnect battery negative lead.

19FUEL SYSTEM
2
REPAIR ENGINE COOLANT TEMPERATURE SENSOR (ECT
SENSOR)
Service repair no - 18.30.10
Remove
1.Disconnect battery negative lead.
2.Remove spring clip and disconnect ECT sensor
multiplug.
3.Position cloth around ECT sensor to absorb
coolant spillage.
4.Remove ECT sensor.
5.Remove sealing washer and discard.
Refit
6.Clean sealing washer, sensor threads and
sensor location.
7.Coat sensor threads with Loctite 577 and fit new
sealing washer.
8.Fit ECT sensor. Tighten to
20 Nm.
9.Fit spring clip to multiplug and connect multiplug
to ECT sensor.
10.Top up cooling system.
11.Run engine to normal operating temperature.
Check for leaks around ECT sensor.CRANKSHAFT POSITION SENSOR (CKP SENSOR)
Service repair no - 18.30.12
Remove
1.Disconnect battery negative lead.
2.Raise vehicle on ramp.
3.Remove 2 bolts securing sensor/shield to engine
backplate.
4.Remove sensor/shield.
5.Remove shield.
6.Disconnect sensor multiplug and remove sensor.
7.Remove spacer from sensor.
CAUTION: All vehicles have a spacer fitted
to the sensor. Ensure spacer is correctly
refitted.
Refit
8.Clean mating faces.
9.Fit spacer to sensor.
10.Position sensor and connect multiplug.
11.Position shield to sensor and align sensor/shield
to engine backplate.
12.Fit bolts. Tighten to
6 Nm.
13.Lower ramp.
14.Reconnect battery negative lead.

19FUEL SYSTEM
4
REPAIR ENGINE CONTROL MODULE (ECM)
Service repair no - 18.30.01
Remove
1.Disconnect battery negative lead.
2.Release and move washer reservoir aside.See
WIPERS AND WASHERS, Repair, Washer
Reservoir
3.Remove 2 studs securing ECM cover.
4.Remove cover.
5.Disconnect 3 ECM multiplugs.
6.Remove 2 bolts securing ECM.
7.Release ECM from 2 lower retainers.
8.Remove ECM.
Refit
9.Reverse removal procedure.
NOTE: Ensure ECM is correctly located by
lower retainers.MASS AIR FLOW SENSOR (MAF SENSOR)
Service repair no - 19.22.25
Remove
1.Disconnect battery negative lead.
2.Loosen clip and disconnect intake hose from
MAF sensor.
3.Disconnect multiplug from MAF sensor.
4.Release 2 clips and remove MAF sensor from air
cleaner.
5.Collect 'O' ring seal.
Refit
6.Ensure mating faces of air cleaner, MAF sensor
and intake hose are clean.
7.Fit 'O' ring to MAF sensor.
8.Fit MAF sensor to air cleaner and secure with
clips.
9.Connect multiplug to MAF sensor.
10.Connect intake hose and secure with clip.
CAUTION: Failure to connect intake hose
securely will allow unmetered air to enter
the engine, causing running problems.
11.Reconnect battery negative lead.

SFI
5
REPAIR FUEL RAIL AND INJECTORS
Service repair no - 19.60.04 - Fuel Rail
Service repair no - 19.60.12 - Injectors
Remove
1.Disconnect battery negative lead.
2.Depressurise fuel system.
See Fuel System -
Depressurise
3.Release plenum chamber and place aside.See
Plenum Chamber
4.Disconnect purge hose, crankcase breather
hose, servo vacuum hose and fuel regulator
hose from ram housing.
5.Remove 6 bolts securing ram housing to inlet
manifold.6.Place small packing block on inlet manifold.
Lever between packing block and ram pipe
housing to break seal.
CAUTION: Do not lever against fuel rail.
7.Remove ram housing.
8.Place cloth over inlet manifold to prevent ingress
of foreign matter.
9.Disconnect 8 injector multiplugs.
10.Disconnect fuel temperature sensor multiplug.
11.Position cloth around fuel feed pipe union to
absorb fuel spillage.
12.Disconnect fuel feed pipe from fuel rail.
13.Plug fuel pipe and rail.
14.Slacken clip securing fuel return hose.