buttons AUDI A4 1999 B5 / 1.G APB Engine Motronic Multiport Fuel Injection System Servising Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 1999, Model line: A4, Model: AUDI A4 1999 B5 / 1.GPages: 90, PDF Size: 0.84 MB
Page 33 of 90

24-28
- Check DTC memory Page 01
-15
. The DTC
memory must be clear. If necessary, repair any
malfunctions and erase the DTC memory.
Switch off the engine, then start up again. Take
vehicle for a test drive and check DTC memory
again to make sure it is clear.
- Run engine at idle speed.
CAUTION!
The electric radiator fan should not be
running. Rapid data transfer
HELP
Select function XX
Indicated on display
- Press buttons -0- and -4- to select function "Basic Setting" and confirm
entry with -Q- button.
Basic settin
g
Input displa
y group number XXX
Indicated on display
- Press buttons -0- -5- and -6- to select "Display group number 056" and
confirm entry with -Q- button.
Pa
ge 33 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 35 of 90

24-30
When the engine is idling the engine control
module tries constantly to adjust the actual
engine speed so that it matches the specified
value.
This means that the actual engine speed when
idling should always be approximately the same
as the specified engine speed.
Display fields 3 and 4 provide additional
information which is not relevant when checking
the idle speed.
-
Press button.
- Press buttons -0- and -6- to select function "End
Output" and confirm entry with -Q- button.
- If readout does not match Specified value, check
DTC memory again.
- If DTC memory was erased, generate readiness
code Page 01
-105
.
Pa
ge 35 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 70 of 90

24-60
Rapid data transfer
HELP
Select function XX
Indicated on display
Note:
During the basic setting the engine control module closes the EVAP
canister purge regulator valve -N80 and switches off the A/C compressor. - Press buttons -0- and -4- to select function "Basic Setting" and confirm
entry with -Q- button.
System in Basic Settin
g
Q
Input displa
y group number
XXX
Indicated on display
- Press buttons -0-, -0- and -2- to select Display Group 002 and confirm
entry with -Q- button.
System in basic setting 2
1
2
3
4
Indicated on display
- Check displayed specified values for engine load.
Pa
ge 70 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 79 of 90

24-69
Display fields
1 2 3 4
Display Group 002: Intake air mass at idling speed with engine at operating temperature
Display xxx RPM xx.x %
x.x ms
xxx.x g/s
Indicates Engine
speed
(in steps of
40 RPM) Load
Average injection
period Air mass
Work range min.: 750
rpm
max.: 6800
rpm min.: 15
%
max.:
175 % min.: 2.0 ms
max.: 19.0 ms min.: 3.0 g/s
max.: approx: 225g/s
Specification 750 - 850
rpm 15.0 -
25.0 % 2.0 - 4.0 ms1.
3.0 - 4.5 g/s
Note --- ---
If readout does not match
specification, see table for display
field 3 Page 24
-70
If readout does not match
specification, see table for display
field 4 Page 24
-71
If the specification is obtained:
-
Press button.
- Press buttons -0- and -6- to select function "End
Output" and confirm entry with -Q- button.
Pa
ge 79 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 88 of 90

Rapid data transmission
HELP
Select function XX
Indicated on display:
- Press buttons -0- and -8- to select function "Read Measuring Value
Block" and confirm entry with -Q- button.
Read Measurin
g Value Block
Enter display group number XXX
Indicated on display:
Pa
ge 88 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 89 of 90

24-77
- Press buttons -0-, -0- and -1- to select "Display
Group 01" and confirm entry by pressing -Q-
button. Read Measuring Value Block 1
1
2
3
4
Indicated on display: (1...4 Display fields)
If the engine speed does not change: - Note engine speed in display field 1.
- Systematically spray parts of intake system with engine leak detection
spray.
-
Press button.- Press buttons -0- and -6- to select function "End Output" and confirm
entry with -Q- button.
Pa
ge 89 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1
Page 90 of 90

24-78
If the engine speed drops:
-
Press button.
- Press buttons -0- and -6- to select function "End
Output" and confirm entry with -Q- button.
- Check sprayed areas of intake system for leaks
and rectify if necessary.
Pa
ge 90 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, 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.FU04.24.1