buttons AUDI A6 1997 C5 / 2.G ATW Engine Readiness Code User Guide
Page 29 of 35
01-90
Work step 10: Diagnostic of Secondary Air
Injection (AIR) system
- Remove VAG1788/10 RPM adjuster and leave
engine running at idle.
Test requirement:
Engine running at idle:
Note:
During diagnostic of the Secondary Air Injection
(AIR) system, the Secondary Air Injection (AIR)
pump will run for several seconds.
Basic Settin
g
Q
Enter displa
y group number XXX
When indicated on display
- Press buttons -0-, -7- and -7- to select "display group number 077" and
press -Q- button to confirm input.
System in basic setting 77
1
2
3
4
When indicated on display
- Check specified value in display field 4:
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Page 31 of 35
01-92
Work step 11: Diagnostic of tank ventilation
valve
Test requirement:
Engine running at idle:
Basic Settin
g
Q
Enter display group number XXX
When indicated on display
- Press buttons -0-, -7- and -0- to select "display group number 070" and
press -Q- button to confirm input.
System in basic setting 70
1
2
3
4
When indicated on display
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 33 of 35
01-94
Work step 12: Diagnostic of tank seal
Test requirements:
Engine running at idle:
Fuel filler cap opened briefly (to reduce
pressure).
Basic Settin
g
Q
Enter display group number XXX
When indicated on display
- Press buttons -0-, -7- and -1- to select "display group number 071" and
press -Q- button to confirm input.
System in basic setting 71
1
2
3
4
When indicated on display
Note:
Test lasts approx. 90 seconds.When the diagnostic of tank seal is performed several times in a row,
the fuel filler cap must be opened briefly before each test to release
pressure.
- Check specified value in display field 4:
Pa
ge 33 of 35 Readiness code11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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pair&id=AUDI.B5.FU06.01.8