buttons AUDI A4 1998 B5 / 1.G AEB Engine Motronic MFI And Ignition System

Read Measurin
g Value Block
HELP
Input display group number XXX

Indicated on display
- Press buttons -0-, -0- and -4- to input display group number 4, and
press -Q- button to confirm input.
Read Measuring Value Block 4 1 2 3 4

Indicated on display (1-4 = display fields)
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11/19/2002 htt
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yp
e=re
pair&id=AUDI.B5.FU02.24.1

24-78

- Check battery positive voltage (B+) in display
field 2.

Display fields

1 2 3 4
Display group 4: Basic engine setting
Display xxx RPM xx.xxx V
xxx.x C
xxx.x 5C
Indicates Engine speed
(in 40 RPM
steps) Battery Positive Voltage (B+) Engine coolant
temperature Intake air
temperature
Range 0-6800 RPM 0.000-16.500 V -46.5 to 141.0 -46.5 to 141.0
Specified
value 0 RPM 10.000-14.500 V --- ---

--- If not as specified Page 24
-79
, Evaluation
of display group 4
--- ---
If displayed value is OK (as specified):

-
Press button to advance program
sequence.
- Press buttons -0- and -6- to select "End Output"
function 06, and press -Q- button to confirm
input.
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ge 105 of 135 Motronic Multi
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jection
(MFI
) and i
gnition s
ystem
11/19/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.1

24-97

Intake air system, checking for leaks
(false air)


Required special tools and test equipment

VAG 1551 or VAG 1552 Scan Tool (ST) with
VAG 1551/3 adapter cable
Engine leak detector spray G 001 800 A1

Notes:
If there are leaks, intake manifold vacuum will
draw in the leak detector spray with outside air.
The spray reduces the ability of the fuel/air
mixture to ignite, which causes a drop in engine
speed and a significant increase in CO-content.
Observe the safety precautions listed on the
container.

Checking

- Connect VAG 1551 or VAG 1552 scan tool and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) Page 01
-7 .
Rapid data transfer
HELP

Indicated on display
Pa
ge 133 of 135 Motronic Multi
port Fuel In
jection
(MFI
) and i
gnition s
ystem
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.1

Select function XX
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
Read Measuring Value Block
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -0- and -1- to input display group number 1, and
press -Q- button to confirm input.
Pa
ge 134 of 135 Motronic Multi
port Fuel In
jection
(MFI
) and i
gnition s
ystem
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.1