1998 AUDI A4 AFC Engine On Board Diagnostic Multiport Fuel Injection Workshop Manual

4 = Oxygen sensor learning requirement display
009 Basic setting 9
1 2 3 4 1 = Oxygen sensor control (bank 1)
2 = Oxygen sensor control (bank 2)
3 = EVAP canister purge regulator valve duty cycle
4 = Throttle angle
010 Basic setting
10
1 2 3 4 1 = Total of oxygen sensor control (bank 1) and momentary oxygen sensor learning value
(bank 1)
2 = Total of oxygen sensor control (bank 2) and momentary oxygen sensor learning value
(bank 2)
3 = Voltage signal, bank 1 heated oxygen sensor 1
4 = Voltage signal, bank 2 heated oxygen sensor 1
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01-158
Note:
Display groups 11 to 45 are used for troubleshooting when there are driving performance problems, and used to evaluate
components and systems that influence the exhaust. Display group
Display shows
Designation
011 Basic setting 11
1 2 3 4 1 = Ignition timing point w/o knock control, w/o idle speed control
2 = Ignition timing point with knock control and idle speed control
3 = Ignition timing point access to idle speed control
4 = Closed Throttle Position (CTP) switch function
012 Basic setting 12
1 2 3 4 1 = Engine speed
2 = Engine load
3 = Ignition timing point map switching
4 = Ignition timing point retarded by knock control
013 Basic setting 13
1 2 3 4 1 = Ignition timing point map switching
2 = Ignition timing point retarded by knock control (cylinder 1)
3 = Ignition timing point retarded by knock control (cylinder 2)
4 = Ignition timing point retarded by knock control (cylinder 3)
014 Basic setting 14 1 = Ignition timing point map switching
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1 2 3 4 2 = Ignition timing point retarded by knock control (cylinder 4)
3 = Ignition timing point retarded by knock control (cylinder 5)
4 = Ignition timing point retarded by knock control (cylinder 6)
015 Basic setting 15
1 2 3 4 1 = Engine speed (RPM)
2 = Knock sensor signal (cylinder 1)
3 = Knock sensor signal (cylinder 2)
4 = Knock sensor signal (cylinder 3)
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01-159

Display group
Display shows
Designation
016 Basic setting 16
1 2 3 4 1 = Engine speed (RPM)
2 = Knock sensor signal (cylinder 4)
3 = Knock sensor signal (cylinder 5)
4 = Knock sensor signal (cylinder 6)
017
(vehicles with
EGR) Basic setting 17
1 2 3 4 1 = Timer 1
2 = Timer 2
3 = Engine load
4 = Exhaust gas recirculation temperature
018 Basic setting 18
1 2 3 4 1 = Specified internal duty cycle of Idle Air Control (IAC) valve -N71-
2 = Current draw by Idle Air Control (IAC) valve -N71-
3 = Power control from Idle Air Control (IAC) valve -N71-
4 = Engine Control Module (ECM) voltage supply
019 Basic setting 19
1 2 3 4 1 = Engine power
2 = Intake air volume
3 = Vehicle speed
4 = Fuel injection time
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020/021 Basic setting
20/21
1 2 3 4 Secondary air injection (AIR) system diagnosis (only for vehicles with secondary air
injection system)
022 Basic setting 22
1 2 3 4 Traction control (only used for vehicles with traction control)
023 Basic setting 23
1 2 3 4 Additional signals
024 Basic setting 24
1 2 3 4 Not assigned
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01-160

Display
group Display
shows Designation
025 Basic setting
25
1 2 3 4 Used only for production and not for customer service
026 Basic setting
26
1 2 3 4 Used only for production and not for customer service
027 Basic setting
27
1 2 3 4 Fuel level display
028 Basic setting
28
1 2 3 4 Used only for production and not for customer service
029 Basic setting
29
1 2 3 4 Diagnostic status (readiness code)
030 Basic setting
30
1 2 3 4 Evaporative emissions (EVAP) system diagnosis (only on vehicles with sensor for EVAP
canister -G172-)
031 Basic setting
31 Operating conditions when combustion misfiring recognized
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1 2 3 4
032 Basic setting
32
1 2 3 4 Largest and smallest flank rise and flank fall time (response time) of bank 1 heated oxygen
sensor voltage signal
033 Basic setting
33
1 2 3 4 Largest and smallest flank rise and flank fall time (response time) of bank 2 heated oxygen
sensor voltage signal
034 Basic setting
34
1 2 3 4 Number of flank rise and/or flank fall checks
035 Basic setting
35
1 2 3 4 Three way catalytic convertor diagnosis, bank 1
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01-161

Display
group Display
shows Designation
036 Basic
setting 36
1 2 3 4 Three way catalytic convertor diagnosis, bank 2
037 Basic
setting 37
1 2 3 4 Sensor wheel learning value
038 Basic
setting 38
1 2 3 4 Current data on combustion misfiring recognition
039 Basic
setting 39
1 2 3 4 Statistical data on combustion misfiring recognition
040 Basic
setting 40
1 2 3 4 Heating current of heated oxygen sensors in front of and behind three way catalytic convertors
041 Basic
setting 41
1 2 3 4 Voltage signals of heated oxygen sensors in front of and behind three way catalytic convertor
042 Basic
setting 42 Diagnostic conditions for diagnosing the flank rise and flank fall time (response time) of the
voltage signals of the heated oxygen sensors in front of three way catalytic convertors
Pa
ge 224 of 366 On Board Dia
gnostic
(OBD
) - Multi
port Fuel In
jection
(MFI
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU01.01.1