Land Rover Defender V8i Workshop Supplement Rover Manual

							19FUEL SYSTEM
4
REPAIR CAMSHAFT POSITION (CMP) SENSOR
Service repair no - 18.30.24
Remove
1.Disconnect battery negative lead.
2.Release sensor multiplug from clip and
disconnect multiplug.
3.Remove bolt securing sensor to front cover.
4.Remove sensor.
5.Remove and discard O ring.
Refit
6.Clean sensor and mating face on front cover.
7.Lubricate and fit O ring to sensor.
8.Fit sensor, fit bolt and tighten to
8 Nm (6 lbf.ft).
9.Connect sensor multiplug and secure to bracket.
10.Reconnect battery negative lead.KNOCK SENSOR - LH
Service repair no - 18.30.28
CAUTION: Due to the sensitivity of the
sensor, do not apply tape or sealant to
sensor threads.
Remove
1.Raise vehicle on ramp.
2.Depress spring clip and disconnect multiplug
from LH knock sensor.
3.Remove sensor from engine.
Refit
4.Clean mating faces of sensor and engine.
5.Fit sensor and tighten to
16 Nm (22 lbf.ft).
CAUTION: Failure to tighten sensor to
correct torque will result in malfunction or
sensor damage.
6.Connect multiplug to sensor.
7.Lower vehicle. 
						

							SFI
5
REPAIR KNOCK SENSOR - RH
Service repair no - 18.30.30
CAUTION: Due to the sensitivity of the
sensor, do not apply tape or sealant to
sensor threads.
Remove
1.Raise vehicle on ramp.
2.Remove bolt securing starter motor heat shield
to engine RH mounting.
3.Release heat shield clip from starter solenoid.
4.Move heat shield aside to gain access to knock
sensor.
5.Depress spring clip and disconnect sensor
multiplug.
6.Remove sensor.
Refit
7.Clean sensor and mating face.
8.Fit sensor and tighten to
16 Nm (12 lbf.ft).
CAUTION: Failure to tighten sensor to
correct torque will result in malfunction or
sensor damage.
9.Connect multiplug to sensor.
10.Manoeuvre heat shield into position.
11.Secure heat shield clip to solenoid.
12.Align heat shield to mounting and secure with
bolt.
13.Lower vehicle. 
						

							19FUEL SYSTEM
6
REPAIR INERTIA FUEL SHUT OFF SWITCH
Service repair no - 19.22.09
Remove
1.Disconnect battery negative lead.
2.Disconnect multiplug from inertia fuel shut off
switch.
3.Remove 2 screws securing shut off switch to
mounting bracket.
4.Remove shut off switch.
Refit
5.Position fuel shut off switch to mounting bracket
and secure with screws.
6.Connect multiplug to inertia switch.
7.Reconnect battery negative lead.RELAY MODULE
Service repair no - 18.30.71
Remove
1.Remove screw securing ECM cover.
2.Remove cover.
3.Release relay module from bracket.
4.Disconnect 2 multiplugs from module.
5.Remove relay module. 
						

							SFI
7
REPAIR Refit
6.Position relay module
7.Connect multiplugs and secure module to
bracket.
8.Fit ECM cover and tighten screw.AIR CLEANER
Service repair no - 19.10.01
Remove
1.Loosen clip securing intake hose to MAF sensor
and disconnect hose.
2.Disconnect multiplug from IAT sensor.
3.Release 2 toggle clips and release MAF sensor
from air cleaner.
4.Remove O ring and carefully place sensor
aside.
5.Remove 3 nuts securing air cleaner to mounting
rubbers.
6.Remove air cleaner assembly.
Do not carry out further dismantling if component
is removed for access only.
7.Remove IAT sensor.
Refit
8.Clean threads of IAT sensor and fit sensor to air
cleaner.
9.Position air cleaner to mountings and fit and
tighten nuts.
10.Clean MAF sensor and mating face.
11.Fit NEW O ring, fit sensor and secure toggle
clips.
12.Connect multiplug to IAT sensor.
13.Connect air intake hose and tighten clip. 
						

							19FUEL SYSTEM
8
REPAIR AIR CLEANER ELEMENT
Service repair no - 19.10.10
Remove
1.Release 3 toggle clips and remove inlet tube.
2.Remove nut and end plate retaining air cleaner
element.
3.Remove air cleaner element and discard.
Refit
1.Clean inlet tube and inside of air cleaner.
2.Squeeze open dump valve fitted at base of air
cleaner and check that rubber is flexible and in
good condition. Replace if necessary.
3.Fit new air cleaner element.
4.Fit retaining plate and fit and tighten nut.
5.Fit intake tube and secure toggle clips.THROTTLE CABLE
Service repair no - 19.20.06
Remove
1.Remove split pin and clevis pin securing cable to
throttle lever. Discard split pin.
2.Release cable adjusting nut from abutment
bracket.
3.Remove split pin and clevis pin securing cable to
throttle pedal. Discard split pin.
4.Release cable from bulkhead and remove cable. 
						

							SFI
9
REPAIR Refit
5.Clean area around cable hole in bulkhead.
6.Position cable and secure to bulkhead.
7.Clean and lubricate clevis pin.
8.Align inner cable to throttle pedal, fit clevis pin
and secure with NEW split pin.
9.Secure outer cable to abutment bracket.
10.Clean and lubricate clevis pin.
11.Adjust outer cable and align inner cable yoke to
throttle lever.
12.Fit clevis pin and secure with NEW split pin.
13.Adjust outer cable to give 1.6 mm (0.06 inch) of
free play in inner cable.
14.Check throttle operation.FUEL TEMPERATURE SENSOR
Service repair no - 19.22.08
Remove
NOTE: Because fuel leakage will not occur
when sensor is removed, it is not
necessary to depressurise the fuel system
for this operation.
1.Release and move brake servo vacuum pipe
aside for access to fuel temperature sensor.
2.Disconnect multiplug from fuel temperature
sensor.
3.Remove sensor.
Refit
4.Clean threads of sensor and mating face on fuel
rail,
5.Fit sensor and tighten to
17 Nm (13 lbf.ft).
6.Connect multiplug and vacuum pipe. 
						

							19FUEL SYSTEM
10
REPAIR HEATED OXYGEN SENSOR (HO2S)
Service repair no - 19.22.16
Remove
CAUTION: The sensor must only be
removed when the exhaust pipe is cold.
1.Position vehicle on ramp.
2.Remove clip securing oxygen sensor lead to
harness.
3.Release sensor multiplug from bracket behind
cylinder head.
4.Disconnect multiplug.
5.Raise ramp.
6.Remove sensor using toolLRT-12-047.
CAUTION: Although robust within the
vehicle enviroment, HO2 sensors are
easily damaged by dropping, excessive
heat and contamination. Care must be exercised
when working on the exhaust system not to
damage the sensor housing or tip.
7.Remove and discard sealing washer.
Refit
8.Clean sensor mating face on exhaust pipe.
NOTE: The new sensor thread is
pre-treated with an anti-seize compound. If
refitting old sensor, fit NEW sealing
washer and apply anti-seize compound to threads.
CAUTION: Do not allow anti-seize
compound to come into contact with the
sensor nose or enter the exhaust system.
9.Fit sealing washer to sensor and fit sensor.
Tighten sensor to
20 Nm (15 lbf.ft).
10.Lower ramp.
11.Connect multiplug and secure to bracket.
12.Secure lead to harness with clip. 
						

							SFI
11
REPAIR MASS AIR FLOW (MAF) SENSOR
Service repair no - 19.22.25
Remove
1.Loosen clip securing air intake hose to MAF
sensor and disconnect.
2.Disconnect multiplug from sensor.
3.Release 2 clips securing sensor to air cleaner.
4.Remove sensor, collect and discard O ring.
Refit
5.Clean sensor and mating faces.
6.Fit NEW O ring to sensor.
7.Fit sensor to air cleaner and secure clips.
8.Connect multiplug.
9.Connect air intake hose to sensor and tighten
clip.PLENUM CHAMBER
Service repair no - 19.22.46
Remove
1.Disconnect battery negative lead.
2.Loosen clip securing air intake hose to plenum
chamber.
3.Disconnect air intake hose.
4.Remove split pin from throttle cable clevis pin.
Discard split pin.
5.Remove clevis pin.
6.Release and remove kick down cable clevis pin.
7.Release throttle cable from abutment bracket.
8.Remove front locknut from kick down cable.
9.Release cable from bracket. 
						

							19FUEL SYSTEM
12
REPAIR
10.Disconnect purge hose from plenum chamber.
11.Disconnect breather hose from plenum chamber.
12.Depress spring clip and disconnect TP sensor
multiplug.
13.Disconnect multiplug from IACV.
14.Remove 6 bolts securing plenum chamber to
inlet manifold.
15.Release plenum chamber from inlet manifold.
16.Fit hose clamp to water jacket coolant hoses.
17.Tighten clamp.
18.Position cloth to absorb coolant spillage.
19.Loosen clips securing coolant hoses to plenum
chamber.
20.Release hoses from plenum chamber.
21.Remove plenum chamber.
22.Place cloth over ram housing.
Do not carry out further dismantling if component
is removed for access only.
23.Remove 4 bolts securing water jacket to plenum
chamber.
24.Remove water jacket from plenum chamber.
25.Remove and discard gasket from water jacket.
26.Move throttle linkage aside to gain access to
mounting bolts.
27.Remove 3 bolts securing throttle linkage to
plenum chamber.
28.Remove throttle linkage and collect spring.
29.Remove 2 screws securing TP sensor to plenum
chamber.
30.Remove TP sensor and collect clamping plate.
31.Remove 2 bolts securing IACV to plenum
chamber.
32.Remove IACV and collect gasket.
33.Discard gasket. 
						

							SFI
13
REPAIR Refit
34.Position throttle linkage and spring to plenum
chamber.
35.Fit spring to linkage.
36.Hold throttle open to gain access to mounting
bolts.
37.Fit and tighten mounting bolts to
8 Nm (6 lbf.ft).
38.Clean mating faces of TP sensor and plenum
chamber.
39.Fit TP sensor and engage spindle.
40.Fit clamping plate and tighten bolts to
2 Nm (1.5
lbf.ft).
41.Clean mating faces of IACV and plenum
chamber.
42.Fit NEW gasket to IACV.
43.Fit IACV to plenum chamber and tighten bolts to
2 Nm (1.5 lbf.ft).
44.Clean mating faces of water jacket and plenum
chamber.
45.Position NEW gasket to plenum chamber.
46.Fit water jacket to plenum chamber and tighten
bolts to
13 Nm (10 lbf.ft).
47.Remove cloth from ram housing.
48.Clean plenum and inlet manifold mating faces.
49.Position plenum chamber.
50.Connect coolant hoses to plenum chamber.
51.Tighten hose clips.
52.Loosen and remove hose clamp.
53.Remove cloth.
54.Apply a thin, uniform coating of Loctite 577
sealant to sealing face of plenum chamber.
55.Fit plenum chamber and tighten bolts to
24 Nm
(18 lbf.ft).
56.Connect multiplug to TP sensor.
57.Connect multiplug to IACV.
58.Connect breather hose to plenum chamber.
59.Connect purge hose to plenum chamber.
60.Fit kick down cable to abutment bracket, fit
locknut and adust cable.
See AUTOMATIC
GEARBOX, Adjustment, Kickdown cable
adjustment
61.Connect throttle cable to abutment bracket.
62.Align throttle cable to lever, fit clevis pin and
secure with NEW split pin.
63.Align kick down cable to lever.
64.Fit and secure clevis pin.
65.Connect air intake hose and secure with clip.
66.Reconnect battery negative lead.
67.Top up cooling system.THROTTLE POSITION (TP) SENSOR
Service repair no - 19.22.49
Remove
1.Disconnect multiplug from TP sensor.
2.Remove 2 Torx screws securing TP sensor and
collect clamp plate.
3.Remove TP sensor.
Remove
4.Clean TP sensor and mating face.
5.Fit sensor ensuring drive engages with throttle
spindle.
6.Position clamp plate, fit Torx screws and tighten
to
2 Nm (1.5 lbf.ft).
7.Connect multiplug.