Page 28 of 79
24-26
Idle speed (RPM), checking
Special Tools and Equipment
Test requirements:
VAS5051 with VAG5051/1Exhaus system free of leaks. Coolant Temperature at least 80 C. Electrical consumers switched off (radiator fan must NOT run during
test). A/C switched off. No pressure gauge connected. Vehicles with automatic transmission Selector lever in P or N.
Pa
ge 28 of 79 Motronic in
jection s
ystem, servicin
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.FU07.24.1
Page 29 of 79
24-27
Notes:
Idle speed cannot be adjusted.
Idle speed is checked during basic setting of
the engine.
During basic setting, the Evaporative Emission
(EVAP) canister purge regulator valve (EVAP
valve -N80-) is closed and the A/C compressor
is switched off
Test sequence
- Check DTC memory Page 01
-12
. There must
not be any DTCs stored, repair malfunctions if
necessary, erase DTC memory, switch engine
off and start again, road test vehicle and check
DTC memory again as a control measure.
- Let engine continue to run at idle.
WARNING!
The electric fan for the radiator must not be
running.
Pa
ge 29 of 79 Motronic in
jection s
ystem, servicin
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.FU07.24.1
Page 68 of 79
24-60
Component location Overview of component
locations Page 24
-5
Test requirements:
Coolant Temperature at least 80 C.
Electrical consumers switched off (radiator
fan must NOT run during test).
A/C switched off.
Checking function
- Connect VAS5051 tester Page 01
-7 and
select vehicle system "01 - Engine electronics".
Engine must run at idle for this.
Display on VAS5051:
- In selection -1-, click on the diagnostic function "04 - Basic setting".
Pa
ge 68 of 79 Motronic in
jection s
ystem, servicin
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.FU07.24.1
