sensor AUDI A6 1997 C5 / 2.G ATW Engine Motronic Fuel Injection Syst
[x] Cancel search | Manufacturer: AUDI, Model Year: 1997, Model line: A6, Model: AUDI A6 1997 C5 / 2.GPages: 81, PDF Size: 1.03 MB
Page 6 of 81

24-5
 
  
Component locations, overview
 
Note:  
Component location without illustration: 
---- 
- Leak Detection Pump (LDP) -V144-
Behind rear left wheelhousing liner
1 - 
Evaporative Emission (EVAP) canister 
purge regulator valve -N80- Checking  Page 24
-107
2 - 
Heated Oxygen Sensor (HO2S) -G39- 
before catalytic converter, 55 Nm 
Continuous oxygen sensorCheck Oxygen Sensor (O2S) and oxygen 
sensor control before Three Way Catalytic 
Converter (TWC)   Page 24
-71
 
Check aging of oxygen sensor before 
catalytic converter   Page 24
-83
 
Check oxygen sensor heater for Oxygen 
Sensor (O2S) before Three Way Catalytic 
Converter (TWC)   Page 24
-99
 
Removing and installing   Page 24
-105
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Page 7 of 81

24-6
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, 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
-87
 
Check oxygen sensor heater for Oxygen 
Sensor (O2S) behind Three Way Catalytic 
Converter (TWC)   Page 24
-99
 
Removing and installing   Page 24
-105
4 - 
Combination valve for secondary air 
injection (AIR) 
Checking, removing and installing:
5 - 
Engine Coolant Temperature (ECT) sensor 
-G62- 
Checking  Page 28
-30
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Page 8 of 81

24-7
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 26; Secondary Air Injection (AIR) system, checking
    6 - 
Fuel pressure regulator Checking  Page 24
-33
7 - 
Engine Speed (RPM) sensor -G28- 
Checking  Page 28
-26
8 - 
Secondary Air Injection (AIR) solenoid 
valve-N112- 
Installation position   Page 24
-14
 , Fig.   
4
 Checking:Green harness connector
9 - 
Bracket for harness connectors Component location   Page 24
-13
 , Fig. 
 1
 
Accessible with coolant expansion tank 
unbolted and swung to the side. 
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Page 9 of 81

24-8
 
  
10 - 
Instrument cluster 
With exhaust Malfunction Indicator Lamp 
(MIL). Notes for Malfunction Indicator Lamp 
(MIL)  Page 01
-3 
with fault light for power accelerator 
activation -K132- (EPC warning lamp). 
Significance of EPC warning lamp   Page 24
-115
 
11 - 
Throttle Position (TP) sensor -G79- and 
sender 2 for accelerator pedal position -
G185- 
Component location   Page 24
-15
 , Fig. 
 5
 
Checking  Page 24
-133
Adapt kick down function   Page 24
-139
12 - 
Brake light switch -F- and brake pedal 
switch -F47- 
Component location   Page 24
-14
 , Fig. 
 3
 
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Page 10 of 81

24-9
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 26; Secondary Air Injection (AIR) system, checking
    13 - 
E-box, plenum chamber Installation locations   Page 24
-15
 , Fig. 
 6
 
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
-36
 
Procedure to follow after open circuit in 
voltage supply   Page 24
-22
 
Replacing Engine Control Module (ECM) 
 Page 24
-23
 
Installation location of Secondary Air 
Injection (AIR) pump relay -J299- Check Secondary Air Injection (AIR) pump 
relay -J299-: 
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Page 11 of 81

24-10
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 21, Charge air system with turbocharger, checking
     
Installation location of motronic Engine Control 
Module (ECM) power supply relay -J271- 
 Check motronic Engine Control Module (ECM) 
power supply relay -J271-   Page 28
-13
 
 Installation location of fuse S130 for Secondary 
Air Injection (AIR) pump 
14 - 
Clutch vacuum vent valve switch -F36- 
Component location   Page 24
-14
 , Fig. 
 3
 
15 - 
Charge air pressure sensor -G31- 
Installation position   Page 24
-16
 , Fig.   
7
 Checking:
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Page 12 of 81

24-11
 
  
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
-120
17 - 
Intake Air Temperature (IAT) sensor -G42- 
Checking  Page 28
-21
18 - 
Recirculating valve for turbocharger-
N249- 
Installation position   Page 24
-14
 , Fig.   
4
 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
-45
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Page 13 of 81

24-12
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 21, Charge air system with turbocharger, checking
   
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 26; Secondary Air Injection (AIR) system, checking
    22 - 
Fuel injectors -N30- through -N33- Checking  Page 24
-38
Removing and installing   Page 24
-46
23 - 
Ignition coils -N-, -N128-, -N158-, -N163- 
Checking  Page 28
-4
24 - 
Wastegate bypass regulator valve -N75- 
Checking:
25 - 
Mass Air Flow (MAF) sensor -G70- 
Checking  Page 24
-60
26 - 
Secondary Air Injection (AIR) pump 
motor-V101- 
Checking:
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Page 14 of 81

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- before catalytic 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 electrics in 
driver's footwell, left.  Fig. 2  Component locations Fuel Pump (FP) Relay -J17-
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Page 16 of 81

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) power supply relay -J271-
4 - Installation location of fuse S130 for Secondary Air Injection (AIR) 
pump 
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