AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1045/w960_1045-0.png AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual

Page 91 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-70
 
  
Display fields  
  
1   2   3   4  
Display group 2: Load measurement  
Display   xxx RPM   xx.xx ms   xx.xx ms   xx.x g/s  
Indicates   Engine 
speed  
(in 40 RPM 
steps)  Engine load   In

Page 92 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual Evaluation of display group 2, display 
field 2  Evaluation of display group 2, display 
field 4  
      If displayed values are OK (as specified):  
     
- 
Press   button to advance program 
sequen

Page 93 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-71
 Evaluation of display group 2, display field 2  Display group: 
2  
  
  
Display field: 
2  
Possible malfunction cause  
Corrective action  
less than 1.00 
ms   
Smaller values can only occu

Page 94 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-72
 Evaluation of display group 2, display field 4  Display 
group: 2  
  
  
Display field: 
4  
Possible malfunction cause  
Corrective action  
less than 2.8 
g/s   
Large amount of false air be

Page 95 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-73
      
Checking voltage supply  
    
If there is no voltage:  
Checking wiring   -  Disconnect 3-pin harness connector from Mass Air Flow sensor (MAF).
-  Connect multimeter US1119 (Fluke 83 or

Page 96 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-74
      
-  Check wiring for short circuits between terminals 
of 3-pin connector, and between connector and 
ECM/test box. 
     
 
Connector terminal 1 to ECM/test box 
socket 12 
     
 Specifi

Page 97 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual Diagnostic Trouble Code (DTC) memory has 
been erased, or ECM was disconnected, 
generate new readiness code   page 01
-73
 . 
Pa
ge 97 of 166 Motronic Multi
port Fuel In
jection 
(MFI
) and i
gnition

Page 98 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-75
      
Engine Coolant Temperature (ECT) 
sensor, checking
 
     
Required special tools and test equipment  
     
VAG1551 or VAG1552 Scan Tool (ST) with 
VAG1551/3 adapter cable 
     VAG1598/

Page 99 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-76
      
Checking  
     
-  Connect VAG1551 or VAG1552 scan tool and 
press buttons -0- and -1- to insert "Engine 
Electronics" address word 01 (with ignition 
switched on)   page 01
-8 . 
Rapid

Page 100 of 166

AUDI A4 1999 B5 / 1.G AHA Engine Multiport Fuel Injection And Ignition System Owners Manual 24-77
      
-  Compare display with specified value for engine 
coolant temperature sensor (display field 3): 
  
Display fields  
  
1   2   3   4  
Display group 4: General engine data  
Display