2002 LAND ROVER DISCOVERY engine

ENGINE MANAGEMENT SYSTEM - TD5
ADJUSTMENTS 18-1-45
ADJUST ME NTS
Glow plug
$% 19.90.20.01
Check
1.Remove glow plug.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Glow plugs.
2.Using tool LRT-12-511connect RED lead to
battery '+' positive and the BLACK lead to
battery '-' negative.
3.Position glow plug into tester and retain with
spring loaded bar.
4.Connect YELLOW lead to glow plug terminal.
5.Press red button on tester and note ammeter
reading. Keep button depressed, glow plug tip
should start to glow after 5 seconds.The tip of
the plug must glow first, if it fails to do so,
replace glow plug.
6.The ammeter reading should show an initial
current draw of 25 amps, which should fall to
12 amps after 20 seconds.
7.Refit glow plug.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Glow plugs.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-46 ADJUSTMENTS

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-47
REPAIRS
Engine control module (ECM)
$% 18.30.03
All replacement ECM's are configured for two track
TP sensors. When fitting replacement ECM to
vehicle with three track TP sensor, TestBook must be
used to configure ECM for three track TP sensor.
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Release retaining strap and remove vehicle
jack.
4.Remove screw, release ECM and disconnect 2
multiplugs.
5.Remove ECM.
Refit
1.Position new ECM and connect multiplugs.
2.Fit ECM and tighten screw.
3.Fit vehicle jack and secure retaining strap.
4.Connect battery earth lead.
5.Fit battery cover and secure with fixings.
6.Programme ECM using TestBook.
Sensor - engine coolant temperature
(ECT)
$% 18.30.10
Remove
1.Remove fixings and remove engine acoustic
cover.
2.Release fixings and remove cooling fan cowl.
3.Disconnect multiplug from ECT sensor.
4.Remove sensor from coolant outlet elbow and
discard sealing washer.
Refit
1.Clean ECT sensor and coolant outlet elbow
mating faces.
2.Fit new sealing washer to ECT sensor. Fit
sensor and tighten to 15 Nm (11 lbf.ft). Connect
multiplug.
3.Fit cooling fan cowl and secure with fixings.
4.Fit engine acoustic cover and secure with
fixings.
5.Top up cooling system.

+ MAINTENANCE, PROCEDURES,
Cooling system.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-48 REPAIRS
Sensor - crankshaft (CKP)
$% 18.30.12
Remove
1.Disconnect multiplug from CKP sensor.
2.Remove bolt securing CKP sensor. Remove
CKP sensor from gearbox housing and discard
'O' ring.
3. If fitted:Remove and discard spacer.
Refit
1.Clean gearbox housing and CKP sensor.
2. If fitted:Fit new spacer.
3.Fit new 'O' ring, position CKP sensor to
gearbox housing and tighten bolt to 9 Nm (7
lbf.ft).
4.Connect multiplug to CKP sensor.
Air filter assembly
$% 19.10.01
Remove
1.Release turnbuckles and remove battery
cover.
2.Disconnect battery earth lead.
3.Remove 2 nuts and remove air intake duct.
4.Release 2 clips securing MAF sensor.
5.Release MAF sensor from air filter cover and
position aside.

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-49
6.Release air filter from 3 grommets, remove
assembly and discard 'O' ring.
7.Remove 2 screws, remove AAP sensor and
discard 'O' ring.
Refit
1.Clean MAF sensor and air filter mating faces.
2.Fit new 'O' ring to air filter.
3.Clean AAP sensor.
4.Using new 'O' ring, fit AAP sensor and tighten
screws.
5.Position air filter assembly and secure in
grommets.
6.Position MAF sensor and secure clips.
7.Position intake duct to air filter and tighten nuts.
8.Connect battery earth lead.
9.Fit battery cover and secure with fixings.
Element - air filter
$% 19.10.10
Remove
1.Release 2 clips and disconnect MAF sensor
from air filter cover.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-50 REPAIRS
2.Disconnect multiplug from AAP sensor.
3.Release 2 clips and remove cover from air
filter.
4.Remove air filter element.
Refit
1.Clean air filter body and cover.
2.Fit new air filter element.
3.Position air cleaner cover and secure clips.
4.Position MAF sensor and secure clips.
5.Connect multiplug to AAP sensor.
Sensor - fuel temperature
$% 19.22.08
Remove
1.Remove 3 bolts and remove engine acoustic
cover.
2.Release fixings and remove battery cover.
3.Disconnect battery earth lead.
4.Disconnect multiplug from fuel temperature
sensor.
5. Thoroughly clean area around fuel
temperature sensor before removal.
6.Remove fuel temperature sensor and discard
sealing washer.
Refit
1.Clean fuel temperature sensor mating faces.
2.Fit new sealing washer and tighten fuel
temperature sensor to 13 Nm (10 lbf.ft) .
3.Connect multiplug to fuel temperature sensor.
4.Connect battery earth lead.
5.Fit battery cover and secure fixings.
6.Fit engine acoustic cover, and secure with
fixings.

ENGINE MANAGEMENT SYSTEM - TD5
REPAIRS 18-1-51
Sensor - mass air flow (MAF)
$% 19.22.25
Remove
1.Disconnect multiplug from MAF sensor.
2.Loosen clip and release air intake hose from
MAF sensor.
3.Release 2 clips and remove sensor from air
cleaner.
Refit
1.Position sensor to air cleaner and secure clips.
2.Position air intake hose and tighten clip.
3.Connect multiplug to MAF sensor.
Sensor - combined MAP and IAT
$% 19.22.26
Remove
1.Remove 3 bolts and remove engine acoustic
cover.
2.Disconnect multiplug from combined MAP and
IAT sensor,
3.Remove 2 bolts securing sensor to inlet
manifold.
4.Remove sensor and discard 'O' ring.
Refit
1.Clean sensor and inlet manifold mating face.
2.Fit new 'O' ring and position sensor to manifold.
3.Fit bolts securing MAP and IAT sensor and
tighten to 9 Nm (7 lbf.ft).
4.Fit engine acoustic cover and secure with
fixings.

ENGINE MANAGEMENT SYSTEM - TD5
18-1-52 REPAIRS
Sensor - ambient air pressure (AAP)
$% 19.22.27
Remove
1.Release 2 clips and disconnect MAF sensor
from air cleaner cover. 2.Release 2 clips and release cover from air
cleaner.
3.Disconnect multiplug from AAP sensor, remove
2 screws, remove sensor and discard 'O' ring.
Refit
1.Clean AAP sensor and air cleaner cover.
2.Fit new 'O' ring, fit sensor and tighten screws.
3.Position air cleaner cover and secure clips.
4.Connect multiplug to AAP sensor.
5.Position MAF sensor and secure clips.