AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide A4 1995 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1045/w960_1045-0.png AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide

Page 11 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide output stage, and fuse for fuel pump. 
     Disconnect harness connectors from all fuel 
injectors. 
     Afterward, erase Diagnostic Trouble Code 
(DTC) memory. 
Pa
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port F

Page 12 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 24-11
      
CAUTION! 
     
BEFORE disconnecting the battery: 
     
Stop the engine.
     Be sure the ignition is switched OFF (also 
applies when connecting the battery). Failure 
to do so may dama

Page 13 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide connector test kit. 
     
For any work affecting the Engine Control 
Module (ECM): 
     BEFORE disconnecting the ECM harness 
connector, switch the ignition OFF and WAIT 
at least 20 seconds. Failur

Page 14 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 24-12
      
Rules of cleanliness
 
     
CAUTION! 
     
Whenever carrying out work on the fuel 
supply and fuel injection systems, carefully 
observe the following rules of cleanliness. 
     
-  Th

Page 15 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide      
-  When the fuel system is opened:
     
 
Avoid working with compressed air 
whenever possible. 
     
 Avoid moving the vehicle if possible.
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jection

Page 16 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 24-13
 Technical data
 
Engine code  
AHA  
Engine idle speed (with consumers 
switched off)  
not adjustable, maintained by Idle Air 
Control (IAC)  All-wheel drive vehicles   620-740 RPM  
   Front-

Page 17 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 13.5-15.5 ohms ( )  
1) Engine at room temperature; with the engine at normal operating temperature the resistance increases by approx. 4-6 
ohms.  
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port Fuel In
jection

Page 18 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 24-14
      
Fuel injection system, servicing
 
      Servicing ignition system   page 28
-1   
     
Notes:  
     
Fuel hoses in the engine compartment must be 
secured with spring-type clamps. Scre

Page 19 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide Proper oxygen sensor function requires 
reference to outside air via the cable. If any 
contact spray reaches the oxygen sensor, it can 
cause damage or improper function. 
     During some tests, mal

Page 20 of 166

AUDI A4 1995 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System User Guide 24-15
       Safety precautions   page 24
-9   
      Rules of cleanliness   page 24
-12
   
      Technical data   page 24
-13
   
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jection 
(MFI
) and i
gn
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