Land Rover Defender V8i Workshop Supplement Rover Manual

							EMISSION CONTROL
1
FAULT DIAGNOSIS TESTING EVAPORATIVE EMISSION CONTROL
Equipment required.
Nitrogen cylinder (compressed air may be used to
pressurize the system when there has NEVER been
fuel present in the fuel or evaporative control
systems).
The following pressure test procedure is intended to
provide a method for ensuring that the system does
not leak excessively and will effectively control
evaporative emissions.
Water manometer 0 - 762mm (0 - 30 H2o or more).
Pipework and a T piece.
Method.
1.Ensure that there is at least two gallons of fuel in
the petrol tank unless there has never been any
fuel in the system.
2.Disconnect, at the EVAP canister, the pipe to the
vapour separator.
3.Connect this pipe to the nitrogen cylinder and
the water manometer using the T piece.
4.Pressurize the system to between 673.1 and
698.3mm (26.5 and 27.5 inches) of water, allow
the reading to stabilize, then turn off the nitrogen
supply.
5.Measure the pressure drop within a period of 2
minutes 30 seconds. If the drop is greater than
63.5mm (2.5 inches) of water the system has
failed the test. Note that a fully sealed system
will show a slight increase in pressure.
6.Should the system fail the test, maintain the
pressure in the system and apply a soap
solution round all the joints and connections until
bubbles appear to reveal the source of the leak.
7.Repeat the test and if successful, dismantle the
test equipment and reconnect the pipe to the
EVAP canister. 
						

							EMISSION CONTROL
1
REPAIR EVAP CANISTER AND PURGE CONTROL VALVE
Service repair no - 17.15.13
Remove
1.Depress tags securing purge pipe to plenum
chamber.
2.Disconnect purge pipe from plenum chamber.
3.Remove PAS reservoir clamp bracket bolt.
4.Open clamp and release reservoir from bracket.
5.Remove 2 nuts securing bracket to wing.
6.Release bracket from wing and disconnect
multiplug from purge valve.
7.Release clip and disconnect fuel tank vapour
separator pipe from canister pipe.
8.Move PAS reservoir aside, release and remove
charcoal canister, purge valve and bracket
assembly.
Do not carry out further dismantling if component
is removed for access only.
9.Remove bracket from purge valve.
Refit
10.Fit bracket to purge valve.
11.Position assembly, connect vapour separator
pipe to canister pipe and secure with clip.
12.Locate purge valve bracket and expansion hose
clip to studs and locate assembly to wing.
13.Fit and tighten nuts.
14.Locate PAS reservoir to bracket clip, compress
clip, fit bolt and tighten to
8 Nm (6 lb ft).
15.Connect purge pipe to plenum chamber.
16.Secure purge pipe to coolant hose with clips. 
						

							17EMISSION CONTROL
2
REPAIR VAPOUR SEPARATOR
Service repair no - 17.15.19
Remove
1.Remove 7 screws securing floor carpet rear
retainer.
2.Release lower section of door sealing rubber on
one side.
3.Remove carpet retainer.
4.Fold floor carpet back on RH side.
5.Release RH side carpet and move aside to
reveal 2 screws securing vapour separator.
6.Remove 2 screws securing vapour separator.
7.Release vapour separator pipe from clip on fuel
pipe.
8.Depress 2 lugs on vapour separator connector
and disconnect pipe.
9.Using toolLRT-19-002depress collar at green
end of speedfit connector and disconnect pipe.
10.Remove vapour separator.
Refit
11.Position vapour separator and connect pipes.
12.Using assistance, align vapour separator and fit
and tighten screws.
13.Apply adhesive to side carpet and body.
14.Fold down side and floor carpets.
15.Fit carpet retainer and fit and tighten screws.
16.Secure door sealing rubber. 
						

							EMISSION CONTROL
3
REPAIR FRONT PIPE / CATALYTIC CONVERTER
Service repair no - 17.50.09
Remove
WARNING: The removal of the exhaust
system must only be carried out when the
engine is cold.
1.Raise vehicle on ramp.
2.Remove RH oxygen sensor.
See FUEL
SYSTEM, Repair, Heated oxygen sensor
(HO2s)
3.Remove LH oxygen sensor.See FUEL
SYSTEM, Repair, Heated oxygen sensor
(HO2s)
4.Remove 4 bolts securing front anti-roll bar
mounting brackets.
5.Remove 6 nuts securing front pipe assembly to
exhaust manifolds.
6.Remove 2 nuts securing front pipe assembly to
intermediate pipe.
7.With assistance, release front pipe assembly
from exhaust manifolds.
8.With assistance, release front pipe assembly
from intermediate pipe.
9.With assistance, lower anti-roll bar and remove
front pipe assembly.
10.Remove and discard flange gaskets.Refit
11.Clean exhaust flange mating faces.
12.Fit new flange gaskets.
13.With assistance, position front pipe to vehicle.
14.With assistance, locate front pipe on exhaust
manifolds and intermediate pipe.
15.Fit and tighten flange nuts.
16.Reposition front anti-roll bar and secure with
bolts.
17.Fit heated oxygen sensors.
See FUEL
SYSTEM, Repair, Heated oxygen sensor
(HO2s); Refit
18.Lower vehicle. 
						

							19 - FUEL SYSTEM
CONTENTS
Page
SFI
DESCRIPTION AND OPERATION
ENGINE MANAGEMENT SYSTEM COMPONENT LOCATION 1.........................
ENGINE MANAGEMENT SYSTEM 3.....................................................................
ADJUSTMENT
ENGINE TUNING 1.................................................................................................
FUEL SYSTEM DEPRESSURISE 1.......................................................................
FUEL TANK DRAIN 1.............................................................................................
REPAIR
IGNITION COILS - SET 1.......................................................................................
ELECTRONIC CONTROL MODULE (ECM) 2........................................................
INTAKE AIR TEMPERATURE (IAT) SENSOR 2....................................................
ENGINE COOLANT TEMPERATURE (ECT) SENSOR 3......................................
CRANKSHAFT POSITION (CKP) SENSOR 3........................................................
CAMSHAFT POSITION (CMP) SENSOR 4............................................................
KNOCK SENSOR - LH 4.........................................................................................
KNOCK SENSOR - RH 5........................................................................................
INERTIA FUEL SHUT OFF SWITCH 6...................................................................
RELAY MODULE 6.................................................................................................
AIR CLEANER 7.....................................................................................................
AIR CLEANER ELEMENT 8...................................................................................
THROTTLE CABLE 8..............................................................................................
FUEL TEMPERATURE SENSOR 9........................................................................
HEATED OXYGEN SENSOR (HO2S) 10...............................................................
MASS AIR FLOW (MAF) SENSOR 11....................................................................
PLENUM CHAMBER 11.........................................................................................
THROTTLE POSITION (TP) SENSOR 13..............................................................
IDLE AIR CONTROL VALVE (IACV) 14.................................................................
FUEL FILTER 14.....................................................................................................
FUEL PRESSURE REGULATOR 15......................................................................
FUEL PUMP 16.......................................................................................................
FUEL TANK 17.......................................................................................................
FUEL RAIL 20.........................................................................................................
RAM HOUSING 21..................................................................................................
SPECIFICATIONS, TORQUE
TORQUE SETTINGS 1........................................................................................... 
						

							SFI
1
DESCRIPTION AND OPERATION ENGINE MANAGEMENT SYSTEM COMPONENT
LOCATION
1.Engine Control Module (ECM)
2.Ignition coils
3.Fuel pressure regulator
4.Mass air flow (MAF) sensor
5.Relay module
- Main relay
- Fuel pump relay
6.Engine coolant temperature (ECT) sensor
7.Camshaft position (CMP) sensor
8.Throttle position (TP) sensor