New Beetle Turbo S L4-1.8L Turbo (AWP) (2002)
If the specification is obtained:
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Press -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with -Q- button.
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Switch off ignition.
Continuation
If the oxygen sensor control in display zone 1 does not fluctuate as stated:
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Press -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with -Q- button.
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Test drive vehicle to remove possible residue on oxygen sensor and repeat check.
Observe the valid safety precautions when carrying out a road test.
If the the specifications in display zone 1 are not obtained even after a test drive, or the value does not fluctuate by at least 2 %:
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Check oxygen sensor before Three Way Catalytic Converter (TWC) for aging. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Component Tests and General Diagnostics/Oxygen Sensor, Checking/Oxygen Sensor Before Catalyst,
Checking/Aging Check
Evaluating display zone 33, display zones 1 - oxygen sensor control learned values before Three Way Catalytic Converter (TWC)