Defender 90 NAS. Manual — part 28
19
FUEL SYSTEM
24
REPAIR
19. Position brake hose to mounting bracket and
secure with nut.
20. Connect brake pipe to hose and, using 2
spanners, tighten union.
21. Remove clamp from brake hose.
22. Ensure sensor body is clean and coat with EP
90 oil.
23. Fit sensor through bush until it contacts the
reluctor ring. The sensor will be ’knocked-back’
to the correct position when the vehicle is driven.
24. Route sensor lead up through engine
compartment and secure cable ties.
25. Lower vehicle.
26. Connect sensor multiplug and secure to clip.
27. Reconnect battery negative lead.
28. Bleed brake system.
See BRAKES, Repair,
brake system bleed
WHEEL SPEED SENSOR - REAR
Service repair no - 19.80.02
Remove
CAUTION: If a sensor is removed for any
reason, a NEW sensor bush and seal must
be fitted.
1. Disconnect battery negative lead.
2. Raise rear of vehicle.
WARNING: Support on safety stands.
3. Remove both rear road wheels.
4. Disconnect sensor multiplugs at RH side of
chassis.
5. Release cable ties securing sensor harness to
rear suspension and axles.
SFI
25
REPAIR
6. Release sensor harness from clips on rear axle.
7. Remove 6 bolts, 3 each side, securing rear
wheel brake caliper mud shields.
8. Remove mud shields and clear area around
sensor to prevent possible ingress of dirt.
9. Using a suitable lever, release sensors from
mounting bushes.
10. Remove sensors.
11. Remove and discard sensor bushes.
Refit
12. Ensure NEW sensor bushes and housings are
clean, then fit bushes.
13. Ensure sensor bodies are clean and lightly coat
with EP 90 lubricant.
14. Fit sensors through bushes until they contact the
reluctor ring. The sensors will be ’knocked-back’
to the correct position when the vehicle is driven.
15. Secure sensor harness to rear axle clips.
16. Secure sensor harness to rear suspension and
axle with cable ties.
17. Connect sensor harness multiplugs.
18. Position rear brake caliper mud shields and
secure with bolts.
19. Fit rear road wheels.
20. Remove stand(s) and lower vehicle.
21. Reconnect battery negative lead.
19
FUEL SYSTEM
26
REPAIR
ECU - ROUGH ROAD DETECTION
Service repair no - 19.80.03
Remove
1. Disconnect battery negative lead.
2. Release front edge of passenger seat cushion
and remove cushion.
3. Release clip and remove ECU cover plate.
4. Remove 2 bolts securing ECU to mounting
bracket and collect nuts.
5. Remove ECU from mounting bracket and
disconnect multiplug.
6. Remove ECU.
Refit
7. Fit ECU, connect multiplug and position to
mounting bracket.
8. Secure ECU mounting bracket with nuts and
bolts.
9. Fit ECU cover plate and secure with clip.
10. Position rear edge of passenger seat cushion to
seat frame and secure front edge to clips.
11. Reconnect battery negative lead.
SFI
1
SPECIFICATIONS, TORQUE
TORQUE SETTNGS
Nm
lbf ft
Intake air temperature (IAT) sensor
8
. . . . . . . . .
6
Crank position sensor
8
. . . . . . . . . . . . . ..
6
Coolant temperature sensor
20
. . . . . . . . . . . .
15
Fuel filter
30
. . . . . . . . . . . . . . . . . . ..
20
Fuel pressure regulator
10
. . . . . . . . . . . . .
7
Coil bracket
8
. . . . . . . . . . . . . . . . . ..
6
Fuel feed pipe
16
. . . . . . . . . . . . . . . . ..
12
Ram housing to manifold
24
. . . . . . . . . . . . .
18
Fuel temperature sensor
17
. . . . . . . . . . . . ..
13
Throttle position sensor
2
. . . . . . . . . . . . .
1.5
Knock sensor
16
. . . . . . . . . . . . . . . . ...
12
Idle air control valve
2
. . . . . . . . . . . . . . .
1.5
Water jacket
13
. . . . . . . . . . . . . . . . . .
10
Throttle bracket
8
. . . . . . . . . . . . . . . .
6
Plenum chamber
24
. . . . . . . . . . . . . . . ..
18
Inlet manifold
38
. . . . . . . . . . . . . . . . .
28
Camshaft position sensor
8
. . . . . . . . . . . . .
6
Heated oxygen sensors
20
. . . . . . . . . . . . ...
15
Fuel pump locking ring
48
. . . . . . . . . . . . . .
35
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