AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1045/w960_1045-0.png AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual

Page 1 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-1
 
  
Motronic Multiport Fuel 
Injection (MFI) and ignition 
system Component locations
 
Data Link Connector (DLC) 
Fuel pump relay 
Oxygen Sensor (O2S) behind Three Way 
Catalytic Converter (TWC

Page 2 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-2
 
  
Oxygen Sensor (O2S) 2 behind Three Way 
Catalytic Converter (TWC) -G131-, with Oxygen 
Sensor (O2S) heater -Z30- 
EVAP system Leak Detection Pump (LDP) -
V144-   
Bank 2, sensor 2
 In exhaus

Page 3 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-3
 
  
1 - 
Harness connector 
For O2S behind TWC -G130- and O2S 
heater -Z29- 4-pin connector, greenFor bank 1, sensor 2
2 - 
Harness connector For O2S 2 behind TWC -G131- and O2S 2 
heater -Z30-

Page 4 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-4
 
  
6 - 
Intake Air Temperature (IAT) sensor -G42- 
7 - 
Harness connector 
For HO2S 2 -G108- with O2S heater -Z28-4-pin connector, blackFor bank 2, sensor 1
8 - 
Harness connector For Knock Sen

Page 5 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-5
 
  
11 - 
Valve 2 for camshaft adjustment -N208- 
12 - 
Camshaft Position (CMP) sensor -G163-, 
bank 1 
13 - 
Heated Oxygen Sensor (HO2S) -G39- with 
Oxygen Sensor (O2S) heater -Z19- 
Bank 1, se

Page 6 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-6
 
  
16 - 
EVAP canister purge regulator valve -N80-
17 - 
Engine Coolant Temperature (ECT) sensor 
-G62- 
4-pin connectorIn coolant pipe behind right cylinder head 
(Bank 1) 
18 - 
Throttle valv

Page 7 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-7
 
  
21 - 
Engine speed (RPM) sensor -G28- 
In transmission housing above differential
22 - 
Camshaft Position (CMP) sensor -G40-, 
bank 2 
23 - 
Heated Oxygen Sensor (HO2S) 2 -G108- 
with Oxygen

Page 8 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-8
 
  
26 - 
Knock Sensor (KS) 1 -G61- 
27 - 
Fuel injectors 
Cylinder 1: -N30-Cylinder 2: -N31-Cylinder 3: -N32-Cylinder 4: -N33-Cylinder 5: -N83-Cylinder 6: -N84-
28 - 
Valve 1 for camshaft adjus

Page 9 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-9
      
Safety precautions
 
     
WARNING! 
     
Fire hazard! Do not smoke, work near 
heaters or open flame, or have anything 
nearby that could ignite fuel. The fuel system 
is under pressure.

Page 10 of 166

AUDI A4 1998 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Workshop Manual 24-10
      
WARNING! 
     
Be alert when working on or near the engine 
and ignition wires. High secondary ignition 
voltage can cause serious personal injury 
and damage vehicle components.
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