AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual A3 1998 8L / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1084/w960_1084-0.png AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual

Page 1 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-107
 
  
Tank ventilation, checking Evaporative Emission (EVAP) canister 
purge regulator valve -N80-, checking
 
Special tools and equipment  
 
VAG1526A
 VAG1527B
 VAG1594A
 VAG1598/31
 VAS5051 w

Page 2 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-108
      
Checking for proper seal  
      When there is no current, the Evaporative 
Emission (EVAP) canister purge regulator valve -
N80- is closed.  
     
-  Disconnect hoses from EVAP valve;

Page 3 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-109
       If valve does not click:  
     
-  Check internal resistance of EVAP valve.
      If valve does not open or close properly:  
     
-  Replace Evaporative Emission (EVAP) canister 
purg

Page 4 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-110
      
Checking voltage supply  
     
Test requirements: 
     
Fuse for the EVAP valve OK. 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations   
     
Fuel Pump

Page 5 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-111
       If LED does not light up:  
     
-  Check wire connection from terminal 1 of 
connector to Fuel Pump (FP) relay via fuse for 
open circuit: 
     
       Electrical Wiring Diagrams, Tro

Page 6 of 6

AUDI A3 1998 8L / 1.G ATW Engine Tank Ventilation Workshop Manual 24-112
       If LED does not blink or if it remains constantly 
lit:  
     
-  Connect VAG1598/31 test box at wiring harness 
to Engine Control Module (ECM), do not connect 
ECM  Page 24
-19
 .