Land Rover Defender 90 Workshop 2nd Edition Nas Rover Manual

19FUEL SYSTEM
2
REPAIR ELECTRONIC CONTROL MODULE (ECM)
Service repair no - 18.30.01
Remove
1.Remove 2 screws securing ECM cover.
2.Remove cover.
3.Disconnect 3 multiplugs from ECM.
4.Remove 2 screws securing ECM.
5.Release ECM from 2 lower retainers.
6.Remove ECM.
Refit
7.Position ECM and secure to lower retainers.
8.Fit and tighten screws securing ECM.
9.Connect multiplugs.
10.Fit cover and secure with screws.INTAKE AIR TEMPERATURE (IAT) SENSOR
Service repair no - 18.30.09
Remove
1.Disconnect multiplug...

SFI
3
REPAIR ENGINE COOLANT TEMPERATURE (ECT)
SENSOR
Service repair no - 18.30.10
Remove
1.Disconnect battery negative lead.
2.Depress 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 and tighten to
20 Nm, 15 lbf ft.
9.Connect multiplug...

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, 6lbf ft.
9.Connect sensor multiplug and secure to bracket.
10.Reconnect battery negative...

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 [hoist].
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...

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 2 screws securing ECM...

SFI
7
REPAIR Refit
8.Position relay module
9.Connect multiplugs and secure module to
bracket.
10.Position ECM and secure to lower retainers.
11.Fit and tighten screws securing ECM.
12.Fit cover and tighten screws.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...

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...

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...

19FUEL SYSTEM
10
REPAIR HEATED OXYGEN SENSOR (HO2S) - FRONT
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 [hoist].
2.Remove clip securing oxygen sensor lead to
harness.
3.Release sensor multiplug from bracket behind
cylinder head.
4.Disconnect multiplug.
5.Raise ramp [hoist].
6.Remove sensor using toolLRT-12-047.
CAUTION: Although robust within the
vehicle enviroment, HO2 sensors are
easily damaged by dropping,...

SFI
11
REPAIR HEATED OXYGEN SENSOR (HO2S) - REAR
Service repair no - 19.22.17
Remove
CAUTION: The sensor must only be
removed when the exhaust pipe is cold.
1.Position vehicle on ramp [hoist].
2.Release sensor multiplug from bracket.
3.Disconnect multiplug.
4.Raise ramp [hoist].
5.Remove sensor using toolLRT-12-047.
6.Remove and discard sealing washer.Refit
7.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...