Land Rover Range Rover Etm 1997 99 Gems 6th Edition Rover Manual

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
CIRCUIT OPERATION2
Mass Air Flow Sensor (X105)
The sensing element of a Mass Air Flow Sensor
(X105) is a ªhot wire anomometerº consisting of two
wires; one heated, one not. The air flows across the
wires, cooling the hot wire and thereby altering its
resistance. The ECM (Z132) measures this change
in resistance and so calculates the amount of air
flowing into the engine.
If the Mass Air Flow Sensor (X105) fails, the engine
will start and then die as the...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
CIRCUIT OPERATION3
Ignition Coils (Z261)
The ignition system on the petrol engine consists of
a ªDISº format, a Direct Ignition System, comprising
of four double ended coils operating on the ªwasted
sparkº technique. The circuit to each coil is
completed via switching within the ECM (Z132),
allowing the coil to charge up and then fire. It
produces sparks in two cylinders simultaneously, one
cylinder on the compression stroke and one on the
exhaust stroke....

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
4CIRCUIT DIAGRAM
30
F 37
20 AP125a
Engine Com-
partment Fuse
Box
[13] A/C Con-
denser
Fan 1
Relay
[14] A/C Con-
denser
Fan 2
Relay
[18] A/C Con-
trol Relay
[19] Engine
Main Con-
trol Relay
RL19
[19]
Not used
Shorting Link 6 2
5
13
RL18
[18]
3
15
4
RL14
[14]
4 C176235 C508
RL13
[13]
4
Not used
Z132
Engine Control
Module (ECM)
E529
See Ground Dis-
tribution S505
S506
17 7 C509
3 C505
5 C50916 910
B
A
A1-6 UR
BB B
2
S501
S515
F
A1-17
UR
NAS 
From VIN
370859...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
5CIRCUIT DIAGRAM
Shorting Link
1
30
F 39
10 A
B
A1-6
15
30
MF2
30 AP125a
Engine Compart-
ment Fuse Box
[12] Fuel Pump
Relay
[16] Starter Relay
Starting and
Charging
Z132
Engine Control
Module (ECM)
Not used
See Ground Dis-
tribution Not used
RL16
[16]
RL12
[12]
E167 31
5
2
1 C177 2 C17231
WO52
4 C508 1 C508
6 C177
UP NR WR
24 C505
B
S114
Not used
8 C509
8 C508
W
15
F 26
20 A
S504
See Fuse Details 

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
6CIRCUIT DIAGRAM
14C110
Z132
Engine Control
Module (ECM)
A
A1-4
2 C541
1 C5411
2 C542
1 C542
C
A1-7
2
NO NO
YU
B
A1-5
X135
Inertia Fuel Shut±Off
Switch
[1] Impact Z238
Body Electrical
Control Module
(BECM)
Z134
Fuel Pump Module
[1] Fuel Level Sensor
[2] Fuel Pump
36 13
2 C543
1 C5433
2 C544
1 C544
4 NO NO
30
2 C545
1 C5455
2 C546
1 C546
6 NO NO
17
2 C547
1 C5477
2 C548
1 C548
8 NO NO
18 YW YB YN YG YS YKYR
C505 11 33 32
WP
10 C1142
GB
WU C111 3
M
E167
21...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
7CIRCUIT DIAGRAM
S503
C
A1-6
D
A1-9
1 C514 2 C514
19 C505Partial2 C50716
Z132
Engine Control
Module (ECM)
NO
SY
Z132
Engine Control
Module (ECM) X105
Mass Air Flow
Sensor K132
Evaporative
Emission Can-
ister Purge
Valve
S502 Partial RBRB 3
C530B RS NO UGNO
Z262
Camshaft Posi-
tion Sensor
2 C530SU
2 1 C531
C531
13 

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
8CIRCUIT DIAGRAM
Z132
Engine Control
Module (ECM)
NS
X250
Crankshaft Posi-
tion Sensor Z202
Crankshaft Posi-
tion Sensor
Shield
KB 12 C509
S510
E529
See Ground Dis-
tribution
X295
Left Knock Sen-
sor 2 C524
1 C524
KW
RBZ264
Left Knock Sensor
Shield
Z264
Left Knock Sensor
Shield
12 C507
X296
Right Knock
Sensor 2 C523
1 C523
RBZ265
Right Knock
Sensor Shield
Z265
Right Knock
Sensor Shield
11
SCR BY
SCR
SCR
11 C509
S512
10 C507
Z132
Engine Control
Module...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
9CIRCUIT DIAGRAM
13
RB
C513
1 C513
G
S502
36 C507
Z132
Engine Control
Module (ECM)US
X311
Intake Air Tem-
perature Sensor
14
RB SLG
2 C511
1 C511
X126
Engine Coolant
Temperature
Sensor
2 C512
1 C512
X128
Engine Fuel
Temperature
Sensor
RB
35 C507
SW4 C50915 C507
X171
Throttle Position
Sensor
Z132
Engine Control
Module (ECM)
3 C520
RB
D
A1-7
Partial
D C510
15 C505
RG
B
16M112
Idle Air Control
Valve
GW
C
34
OR
A
35
M
2 C5201R
YLG
2
G
A1-18
S516
H
A1-18
NAS
from...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
10CIRCUIT DIAGRAM
15
F 26
20 A
S509
E529
S510
Z132
Engine Control
Module (ECM)
P125a
Engine Compart-
ment Fuse Box
8 C508
WOU 34 C50733
See Fuse Details
X139
Left Heated Oxy-
gen Sensor Z193
Left Heated Oxy-
gen Sensor ShieldZ194
Right Heated
Oxygen Sensor
Shield
X160
Right Heated
Oxygen Sensor
Z193
Left Heated Oxy-
gen Sensor ShieldZ194
Right Heated
Oxygen Sensor
Shield
Z132
Engine Control
Module (ECM)
RB
S514
SCRWO RBW
WO
SCRS507
PartialA1-11
E
21 C505 32...

SEQUENTIAL MULTIPORT FUEL INJECTION (SFI±V8)A1
11CIRCUIT DIAGRAM
15
F 26
20 A
S509
E529
S510
Z132
Engine Control
Module (ECM)
P125a
Engine Compart-
ment Fuse Box
8 C508
WYG 17 C5078
See Fuse Details
X289
Left Heated Oxy-
gen Sensor (Post
Catalyst) Z266
Left Heated Oxy-
gen Sensor (Post
Catalyst) ShieldZ267
Right Heated
Oxygen Sensor
(Post Catalyst)
Shield
X290
Right Heated
Oxygen Sensor
(Post Catalyst)
Z266
Left Heated Oxy-
gen Sensor (Post
Catalyst) ShieldZ267
Right Heated
Oxygen Sensor
(Post Catalyst)...