display AUDI A4 1996 B5 / 1.G AWM Engine Tank Ventilation Checking Workshop Manual

24-115

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; harness
connector remains connected.

- Attach assisting hose to one connection of
EVAP valve.

- Connect VAS5051 tester Page 01
-7 and
select vehicle system "01 - Engine electronics".
Ignition must remain switched on for this.

- Initiate output DTM and activate Evaporative
Emission (EVAP) canister purge regulator valve
-N80- Page 01
-51
.

Display on VAS5051:
A - 1. Actuator in test
1 - EVAP canister purge regulator valve -N80-
Valve must click... ...and must open and close (can be tested by blowing into
assisting hose).
Pa
ge 2 of 6 Tank ventilation, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.3