AUDI A4 2000 B5 / 1.G AWM Engine Motronic Injection System Servicing User Guide

(ECM) voltage supply relay -J271- Page 28
-13

Installation location of fuse S130 for
Secondary Air Injection (AIR) pump
Pa
ge 11 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-10


Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 21, Charge air system with turbocharger, checking
14 -
Clutch vacuum vent valve switch -F36-
Component location Fig. 3
, Page
24
-14

15 -
Charge air pressure sensor -G31-
Installation location Fig. 7
, Page
24
-16

Checking:
16 -
Throttle valve control module -J338-
With throttle drive (power accelerator
actuation) -G186-, angle sensor -1- for
throttle drive (power accelerator actuation)
-G187-, and angle sensor -2- for throttle
drive (power accelerator actuation) -G188- Checking Page 24
-124
Pa
ge 12 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-11


17 -
Intake Air Temperature (IAT) sensor -G42-
Checking Page 28
-21
18 -
Recirculating valve for turbocharger-
N249-
Installation location Fig. 4
, Page
24
-14

Blue harness connector
19 -
Knock Sensor (KS) 1 -G61-
20 -
Knock Sensor (KS) 2 -G66-
21 -
Camshaft Position (CMP) sensor 2 -G40- Checking Page 28
-49
22 -
Fuel injector
Cylinder 1 Fuel Injector -N30-Cylinder 2 fuel injector -N31-Cylinder 3 fuel injector -N32-Cylinder 4 fuel injector -N33-Checking Page 24
-37
Removing and installing Page 24
-45
Pa
ge 13 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-12


Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 21, Charge air system with turbocharger, checking

Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 26; Secondary Air Injection (AIR) system, checking

23 -
Ignition coil
Ignition coil -N-Ignition coil 2 -N128-Ignition coil 3 -N158-Ignition coil 4 -N163-Checking Page 28
-4
24 -
Wastegate bypass regulator valve -N75-
Checking:
25 -
Mass Air Flow (MAF) sensor -G70-
Checking Page 24
-59
26 -
Secondary Air Injection (AIR) pump
motor-V101-
Checking:
Pa
ge 14 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-13


The following harness connectors are located below the coolant
expansion tank: Fig. 1 Installation location, harness connectors
1 - 4-pin harness connector, brown
for Oxygen Sensor (O2S) behind Three Way Catalytic Converter
(TWC) -G130- and Oxygen Sensor (O2S) Heater 1 -Z29- (bank 1
sensor 2)
2 - 6-pin harness connector, black
for Heated Oxygen Sensor (HO2S) -G39- beforecatalytic converter
and Oxygen Sensor (O2S) Heater -Z19- (bank 1 sensor 1)
3 - 3-pin harness connector, gray
for Engine Speed (RPM) sensor -G28-
4 - 3-pin harness connector, blue
for Knock Sensor (KS) 2 -G66-
5 - 3-pin harness connector, green
for Knock Sensor (KS) 1 -G61-

Fuel Pump (FP) Relay -J17- is located at position 4 of central electronics
in driver's footwell, left. Fig. 2 Component locations Fuel Pump (FP) Relay -J17-
Pa
ge 15 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-14


Note:
In order to assure sufficiently secure fitting, switches must not be installed
more than once.
Adjusting switch:
Repair Manual, Brake System, Repair Group 46; Brake booster, removing and installing
Fig. 3 Installation location of brake light switch -F- and brake
pedal switch -F47-, clutch vacuum vent valve switch -F36-
1 - Clip
2 - Clutch vacuum vent valve switch -F36-
3 - Brake light switch -F-, brake pedal switch -F47-

Note:
Illustration depicts intake manifold removed, from below. Fig. 4 Installation location of Secondary Air Injection (AIR)
solenoid valve-N112- and recirculating valve for
turbocharger-N249-
Installation location: Below intake manifold
1 - Recirculating valve for turbocharger -N249-
2 - Secondary Air Injection (AIR) solenoid valve -N112-
Pa
ge 16 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-15


Fig. 5 Installation position, Throttle Position (TP) sensor -G79-
and sender 2 for accelerator pedal position -G185-

Fig. 6 Installation positions in E-box, plenum chamber
1 - Engine Control Module (ECM)
2 - Secondary Air Injection (AIR) pump relay -J299-
3 - Motronic Engine Control Module (ECM) voltage supply relay -J271-
4 - Installation location of fuse S130 for Secondary Air Injection (AIR)
pump
Pa
ge 17 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-16


Charge air pressure sensor -G31- (arrow) bolted into charge air cooler at
top Fig. 7 Installation location, charge air pressure sensor -G31-
Pa
ge 18 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-17


Air cleaner, disassembling and
assembling

1 -
Lower part of air cleaner housing
2 -
Sleeve
3 -
Rubber grommet
4 -
Air duct
to metering unit
5 -
Seal
6 -
Mass Air Flow (MAF) sensor -G70- Checking Page 24
-59
7 -
Air duct
8 -
6 Nm
9 -
Upper part of air cleaner housing
Pa
ge 19 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1

24-18


Repair Manual, Maintenance
10 -
Wire
For EVAP canister system
11 -
10 Nm
12 -
Heat shield
13 -
Filter element Follow filter change intervals
14 -
10 Nm
15 -
Rubber grommet
Pa
ge 20 of 79 Motronic in
jection s
ystem, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.1