AUDI A4 1995 B5 / 1.G AWM Engine Readiness Code Owner's Guide
Manufacturer: AUDI, Model Year: 1995,
Model line: A4,
Model: AUDI A4 1995 B5 / 1.G
Pages: 43, PDF Size: 0.14 MB
AUDI A4 1995 B5 / 1.G AWM Engine Readiness Code Owner's Guide
A4 1995 B5 / 1.G
AUDI
AUDI
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AUDI A4 1995 B5 / 1.G AWM Engine Readiness Code Owner's Guide
Trending: heating, transmission, catalytic converter, sensor, heater, clutch, coolant temperature
Page 31 of 43
01-102
Work step 9: Diagnostic of oxygen sensor
aging behind catalytic converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
-
Click on - button
Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "043" in button field -2- for "display group number 043"
and press Q button to confirm input.
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Page 32 of 43
01-103
Display on VAS5051:
- Check specified value in display field -4-.
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Page 33 of 43
01-104
Display fields
1 2 3 4
Display group 043: Oxygen sensor aging diagnostic, oxygen sensor behind catalytic converter (bank 1)
Display xxxx/min
xxx C
x.xxx V
---
Indicated Engine speed
(RPM) Exhaust
temperature Oxygen sensor voltage
Bank 2, sensor 1 Diagnostic condition
Functional
range Test OFF
Test ON
B1-S2 OK
B1-S2 not OK
Specified
value 2600 RPM larger than 350
C
0.100 to 0.950 volts B1-S2 OK
Note
If "B1-S2 not OK" is displayed: Check
DTC memory Page 01
-12
If specified value B1-S2 OK" is obtained:
- Perform next work step.
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Page 34 of 43
01-105
Work step 10: Diagnostic of catalytic
converter
Test requirement:
Engine continues to run at 2600 RPM.
Display on VAS5051:
Note:
Catalytic converter diagnostic lasts approx. 60 seconds. -
Press button 3 times to change into display group 046.- Check specified values in display fields -2- and -4-.
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Page 35 of 43
01-106
Display fields
1 2 3 4
Display group 046: Diagnostic of catalytic converter (bank 1)
Display xxxx/min
xxx C
x.xx
---
Indicated Engine
speed
(RPM) Exhaust temperature Measurement
Catalytic
converter -
conversion Diagnostic condition
Functional
range 0 to 8 Test OFF
Test ON
Cat B1 OK
Cat B1 not OK
Specified
value 2600 RPM
550 to 700 C
Larger than 1.0 Cat B1 OK
Note
As long as the exhaust temperature
is not within the specified range, the
test will not be initiated. If necessary,
increase or decrease RPM
If "Cat B1 not OK" is displayed:
Check DTC memory Page 01
-
12
. If no DTCs are stored,
replace catalytic converter.
If specified value "Cat B1 OK" is obtained:
- Perform next work step.
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Page 36 of 43
01-107
Work step 11: Diagnostic of tank ventilation
valve
- Remove the VAG1788/10 RPM adjuster and
leave engine running at idle.
Test requirement:
Engine running at idle:
Display on VAS5051:
-
Click on - button
Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "070" in button field -2- for "display group number 070"
and press Q button to confirm input.
Pa
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Page 37 of 43
01-108
Display on VAS5051:
Note:
If test is not initiated or if indication switches from "Test ON" to "Test
OFF", depress accelerator pedal briefly, test will be repeated. - Check specified value in display field -4-.
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Page 38 of 43
01-109
Display fields
1 2 3 4
Display group 070: Diagnostic of tank ventilation valve
Display xx % xx %
---
Indicated Degree tank
ventilation valve is
opened Oxygen
sensor control
Diagnostic
value
Diagnostic condition
Functional
range
Test OFF
Test ON
TVV OK
TVV not OK
Aborted
Specified
value 0 to 99 % less than -7 %
or greater than
7 %
TVV OK
Note
If "TVV not OK" is displayed: Check DTC memory Page 01
-
12
. Check Evaporative Emission (EVAP) canister purge
regulator valve -N80- Page 24
-114
If specified value "TVV OK" is obtained:
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Page 39 of 43
- Perform next work step.
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Page 40 of 43
01-110
Work step 12: Diagnostic of Secondary Air
Injection (AIR) system
Test requirement:
Engine running at idle:
Display on VAS5051:
-
Click on - button
Display on VAS5051:
1 - Enter display group Max. input value = 255
- Select function "077" in button field -2- for "display group number 077"
and press Q button to confirm input.
Pa
ge 40 of 43 Readiness code11/22/2002 htt
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Trending: lock, coolant temperature, reset, OBD port, catalytic converter, transmission, change time
