24-134
Evaporative Emission (EVAP)
system, checking
Evaporative Emission (EVAP) Canister
Purge Regulator Valve -N80, checking
Checking for leaks
If there is no electrical signal (not activated) the
solenoid valve remains closed.
- Disconnect hoses from Evaporative Emission
(EVAP) Canister Purge Regulator Valve -N80.
- Start output Diagnostic Test Mode and select
Evaporative Emission (EVAP) Canister Purge
Regulator Valve -N80 Page 01
-75
.
Output Diagnostic Test Mode EVAP canister pur
ge re
gulator valve -N80
Indicated on display
The valve should click and should open and close (test by blowing into
auxiliary hose).
- If valve does not click, carry out electrical test of Evaporative Emission
(EVAP) Canister Purge Regulator Valve Page 24
-135
.
- If valve does not open and close properly, replace Evaporative
Emission (EVAP) Canister Purge Regulator Valve.
Pa
ge 1 of 6 Eva
porative Emission
(EVAP
) system, 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.FU04.24.3
