AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking

AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking https://www.carmanualsonline.info/img/6/997/w960_997-0.png AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-136
 
     
Evaporative Emissions 
(EVAP) system, checking 
     
CAUTION! 
     
Whenever carrying out work on the fuel 
supply and/or fuel injection systems, read 
and carefully follow the Cautio

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-137
      
Leak Detection Pump (LDP), checking
 
     
Electrical testing  
    
If resistance is NOT OK:  -  Disconnect harness connector for LDP -V144-.
-  Connect multimeter US 1119 (Fluke 83 or

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-138
      
Voltage supply, checking  
    
If LED tester does not light:  -  Disconnect harness connector for LDP -V144-.
-  Connect VAG 1527B LED voltage tester between connector terminal 3 
(B+)

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-139
      
Evaporative Emission (EVAP) Canister 
Purge Regulator Valve, checking
 
     
Required special tools and test equipment  
     
VAG 1551 or VAG 1552 Scan Tool (ST) with 
VAG 1551/3 adapt

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking Read Measuring Value Block 70 1 2 3 4 
    
Indicated on display (1-4 = display fields)  
Pa
ge 5 of 12 Eva
porative Emissions 
(EVAP
) system, checkin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-140
      
-  Press -4- button- to select "Basic Setting" 
function 04 (diagnosis for EVAP canister purge 
regulator valve is initiated). 
     
Note:  
     During this diagnosis there should not

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-141
 
  
Display fields  
  
1   2   3   4  
Display group 70: EVAP canister purge regulator valve  
Display   xxx %   xx.x %   xx.xx g/s   Test OFF/Test 
ON  
EVAP OK  
EVAP notOK  
Indicated   EV

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking Rapid data transfer 
HELP
Selecting function XX
    
Indicated on display  
-  Press buttons -0- and -6- to select "End Output" function 06, and 
press -Q- button to confirm input. 
Pa
ge 8 of 12 Eva

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking 24-142
      
Checking for blockage and leaks  
      The EVAP canister purge regulator valve is 
closed when power is off.  
     
-  Remove EVAP canister purge regulator valve -
N80- (component loca

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AUDI A6 1996 C5 / 2.G AEB Engine EVAP System Checking If resistance is NOT OK:    
Specified value: 22-30   -  Replace EVAP canister purge regulator valve
Pa
ge 10 of 12 Eva
porative Emissions 
(EVAP
) system, checkin
g
11/19/2002 htt
p://127.0.0.1:8080/
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