catalytic converter AUDI A8 1998 D2 / 1.G ATQ Engine Readiness Code User Guide
Page 33 of 47
01-101
If specified value B2-S2 OK" is obtained:
System in Basic Setting 44
1
2
3
4
When indicated on display:
- Check specified value in display field 4.
Display fields
1 2 3 4
Display group 044: Oxygen sensor aging diagnostic, oxygen sensor behind catalytic converter (bank 2)
Display xxxx/min
xxx C
x.x s
---
Indicated Engine speed
(RPM) Exhaust
temperature Voltage of oxygen sensors
behind catalytic converter,
bank 2 Diagnostic condition
Functional
range 630 to 6800
RPM 70 to 850 C
0.100 to 1.000 V Test OFF
Test ON
B2-S2 OK
B2-S2 not OK
Specified
value 2200 RPM
above 380 C 0.100 to 1.000 V B2-S2 OK
Notes
If "B2-S2 not OK" is displayed: Check
Diagnostic Trouble Code (DTC) memory
Page 01
-15
- Press -C- button.
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ge 33 of 47 Readiness code11/23/2002 htt
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pair&id=AUDI.B5.FU05.01.7
Page 34 of 47
01-102
Work step 10: Diagnostic of catalytic
converter
Test requirement
Engine continues to run at 2200 RPM.
Basic Settin
g
Q
Input display group number XXX
When indicated on display:
- Press buttons -0-, -4- and -5- to select "display group number 046" and
press -Q- button to confirm input.
System in Basic Setting 46
1
2
3
4
When indicated on display:
Note:
Catalytic converter diagnostic lasts approx. 60 seconds. - Check specified value in display field 4.
Pa
ge 34 of 47 Readiness code11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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pair&id=AUDI.B5.FU05.01.7
Page 35 of 47
01-103
Display fields
1 2 3 4
Display group 046: Diagnostic of catalytic converter (bank 1)
Display xxxx/min
xxx C
x.x s
---
Indicated Engine
speed
(RPM) Exhaust
temperature Catalytic
converter -
conversion Diagnostic condition
Functional
range 630 to 6800
RPM 70 to 850 C
0.00 to 0.99 Test OFF
Test ON
Cat B1 OK
Cat B1 not OK
Specified
value 2200 RPM
above 420 C 0.00 to 0.52
1)
0.00 to 0.47
2)
Cat B1 OK
Notes
If "Cat B1 not OK" is displayed: Check Diagnostic
Trouble Code (DTC) memory Page 01
-15
. If no DTCs
are stored, replace catalytic converter.
1) Manual transmission 2) Automatic transmission
Pa
ge 35 of 47 Readiness code11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.7
Page 37 of 47
01-105
Display fields
1 2 3 4
Display group 047: Diagnostic of catalytic converter (bank 2)
Display xxxx/min
xxx C
x.x s
---
Indicated Engine
speed
(RPM) Exhaust
temperature Catalytic
converter -
conversion Diagnostic condition
Functional
range 630 to 6800
RPM 70 to 850 C
0.00 to 0.99 Test OFF
Test ON
Cat B2 OK
Cat B2 not OK
Specified
value 2200 RPM
above 420 C 0.00 to 0.52
1)
0.00 to 0.47
2)
Cat B2 OK
Notes
If "Cat B2 not OK" is displayed: Check Diagnostic
Trouble Code (DTC) memory Page 01
-15
. If no DTCs
are stored, replace catalytic converter.
1) Manual transmission 2) Automatic transmission
Pa
ge 37 of 47 Readiness code11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.7