sensor AUDI A4 2000 B5 / 1.G AWM Engine Motronic Injection System Servicing Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2000, Model line: A4, Model: AUDI A4 2000 B5 / 1.GPages: 79, PDF Size: 1.04 MB
Page 6 of 79

24-5
Component locations, overview
Note:
Component location without illustration:
----
- Leak Detection Pump (LDP) -V144-
Below rear left wheelhousing liner
1 -
Evaporative Emission (EVAP) canister
purge regulator valve -N80- Checking Page 24
-114
2 -
Heated Oxygen Sensor (HO2S) -G39-
before catalytic converter, 55 Nm
Constant oxygen sensorCheck Oxygen Sensor (O2S) and oxygen
sensor control before Three Way Catalytic
Converter (TWC) Page 24
-71
Check oxygen sensor aging of oxygen
sensor before catalytic converter Page 24
-84
Check oxygen sensor heater for Oxygen
Sensor (O2S) before Three Way Catalytic
Converter (TWC) Page 24
-89
Removing and installing Page 24
-112
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Page 7 of 79

24-6
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Engine Code(s): AWM, Repair Group 26; Secondary Air Injection (AIR) system, checking
3 -
Oxygen Sensor (O2S) behind Three Way
Catalytic Converter (TWC) -G130-, 55 Nm
Check Oxygen Sensor (O2S) and oxygen
sensor control behind Three Way Catalytic
Converter (TWC) Page 24
-94
Check oxygen sensor heater for Oxygen
Sensor (O2S) behind Three Way Catalytic
Converter (TWC) Page 24
-107
Removing and installing Page 24
-112
4 -
Combination valve for secondary air
injection (AIR)
Checking, removing and installing:
5 -
Engine Coolant Temperature (ECT) sensor
-G62-
Checking Page 28
-31
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Page 8 of 79

24-7
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 26; Secondary Air Injection (AIR) system, checking
6 -
Fuel pressure regulator
Checking Page 24
-32
7 -
Engine Speed (RPM) sensor -G28-
Checking Page 28
-27
8 -
Secondary Air Injection (AIR) solenoid
valve-N112-
Installation location Fig. 4
, Page
24
-14
Checking:Green harness connector
9 -
Bracket for harness connectors Component location Fig. 1
, Page
24
-13
Accessible with coolant expansion tank
unbolted and swung to the side.
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Page 9 of 79

24-8
10 -
Instrument cluster
with exhaust Malfunction Indicator Lamp
(MIL). Notes for Malfunction Indicator Lamp
(MIL) Page 01
-3
with Electronic Power Control (EPC)
warning lamp -K132- (EPC warning lamp).
Significance of EPC warning lamp Page 24
-122
11 -
Throttle Position (TP) sensor -G79- and
sender 2 for accelerator pedal position -
G185-
Component location Fig. 5
, Page
24
-15
Checking Page 24
-138
Adapt kick down function Page 24
-145
12 -
Brake light switch -F- and brake pedal
switch -F47-
Component location Fig. 3
, Page
24
-14
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Page 10 of 79

24-9
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 26; Secondary Air Injection (AIR) system, checking
13 -
E-box, plenum chamber
Installation locations Fig. 6
, Page
24
-15
Installation location for motronic Engine
Control Module (ECM) -J220- with
integrated Barometric pressure (BARO)
sensor -F96- Check voltage supply of Engine Control
Module (ECM) Page 28
-37
Procedure to follow after open circuit in
voltage supply Page 24
-21
Replacing Engine Control Module (ECM)
Page 24
-22
Installation location of Secondary Air
Injection (AIR) pump relay -J299- Check Secondary Air Injection (AIR) pump
relay -J299-: Installation location of motronic Engine
Control Module (ECM) voltage supply relay
-J271- Check motronic Engine Control Module
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Page 12 of 79

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
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Page 13 of 79

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
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Page 14 of 79

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:
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Page 15 of 79

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-
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Page 17 of 79

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
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