buttons AUDI A3 2000 8L / 1.G ATW Engine Ignition System Workshop Manual

28-22
Component location Overview of component
locations Page 24
-5

Test sequence

- Connect VAS5051 tester or VAG1551 scan tool
and select control module for engine electronics
using "address word" 01 Page 01
-10
. Engine
must run at idle.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read measurin
g value block
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -0- and -4- to select "display group number 004" and
press -Q- button to confirm input.
Read Measuring Value Block 4
1
2
3
4

Indicated on display
- Check specified value for Intake Air Temperature (IAT) sensor in
display field 4:
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28-31
Component location Overview of component
locations Page 24
-5

Test requirement:

Engine cold

Test sequence

- Connect VAS5051 tester or VAG1551 scan tool
and select control module for engine electronics
using "address word" 01 Page 01
-10
. Engine
must run at idle.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read measurin
g value block
Q
Enter displa
y group number XXX

When indicated on display
- Press buttons -0-, -0- and -4- to select "display group number 004" and
press -Q- button to confirm input.
Read Measuring Value Block 4
1
2
3
4

Indicated on display
- Check indication in display field 3.
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28-51

Misfire recognition, checking


Special tools and equipment

Test sequence
VAS5051 with VAG5051/1
orVAG1551 with VAG1551/3A
- Connect VAS5051 tester or VAG1551 scan tool and select control
module for engine electronics using "address word" 01 Page 01
-10
.
Engine must run at idle.
Rapid data transfer
HELP
Select function XX

When indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read measurin
g value block
Q
Enter displa
y group number XXX

When indicated on display
- Press buttons -0-, -1- and -4- to select "display group number 014" and
press -Q- button to confirm input.
Read Measuring Value Block 14
1
2
3
4

When indicated on display
- Check misfire recognition.
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28-53

Check misfire recognition of the individual
cylinders. Read measuring value block
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -1- and -5- to select "display group number 015"
and press -Q- button to confirm input.
Read Measuring Value Block 15
1
2
3
4

When indicated on display
- Check misfire recognition in display fields 1 to 4.

Display fields

1 2 3 4
Display group 015: Misfire recognition of cylinders 1, 2 and 3
Display
xxx
xxx
xxx
---
Indicated
Number of combustion
misfires, cylinder 1 Number of combustion
misfires, cylinder 2 Number of combustion
misfires, cylinder 3 Misfire
recognition
Functional
range


activated
locked
Specified
value 0
0
0
activated
Note
If the specified value is exceeded: Evaluation Page 28
-55

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28-54

- Press -C- button.Read measuring value block
Q
Enter display group number XXX

When indicated on display
- Press buttons -0-, -1- and -6- to select "display group number 016" and
press -Q- button to confirm input.
Read Measuring Value Block 16
1
2
3
4

When indicated on display
- Check misfire recognition in display fields 1 and 4:

Display fields

1 2 3 4
Display group 016: Misfire recognition of cylinder 4
Display
xxx


---
Indicated
Number of combustion misfires, cylinder 4


Misfire recognition
Functional range



activated
locked
Specified value
0


activated
Note
If the specified value is exceeded: Evaluation Page 28
-55

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