Functional Check; Test Conditions; Coolant Temperature Must Be At Least 85; C, Display Group 1, Display Zone 2 - Volkswagen Golf 1999 Service Manual

Secondary air system
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Functional check

Test conditions

Vacuum lines and hose connections
free of leaks.
Vacuum lines not blocked or kinked.
Selector lever must be in position "P" or
"N" on models with an automatic
transmission.

Coolant temperature must be at least 85

C, display group 1, display zone 2.

Oxygen sensor aging before catalytic
converter OK, checking:
Repair Manual, 2.8 Liter VR6 4V Fuel
Injection & Ignition, Engine Code(s) BDF,
Repair Group 24
Note:
The diagnosis will only be ended if the
oxygen sensor aging diagnosis before
catalytic converter is completed successfully
first.
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