lock AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/964/w960_964-0.png AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual

Page 1 of 30

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-1
 
     
Exhaust system components, 
removing and installing 
     
Notes:  
     
Removing and installing exhaust manifold   
Page 26
-17
 
     
After working on the exhaust system ensure 
that

Page 17 of 30

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-17
      
Exhaust manifold, removing and 
installing
 
     
Removing  
     
- Remove engine   Page 10
-1 .
     
- Remove turbocharger   Page 21
-1
     
- Unbolt exhaust manifold.
     
Installi

Page 20 of 30

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-20
      
Test sequence  
     
-  Connect VAS 5051 tester or VAG 1551 scan 
tool and select control module for engine 
electronics using "address word" 01. Engine 
must run at idle for this.

Page 22 of 30

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-22
       If values above 20 % are displayed constantly, 
then  
     
fuel pressure may be too low,
     mass air flow sensor signal may be too small.
     
-  Select measuring value block 220.
Re

Page 23 of 30

AUDI A4 1998 B5 / 1.G APB Engine Exhaust System Components Workshop Manual 26-23
      
-  Repeat test for bank 2  measuring value block 
221       If specified values are not obtained and there is a 
malfunction stored in the Diagnostic Trouble 
Code (DTC) memory:  
     
-