LEMON Manuals
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Volkswagen
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2003
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Jetta GLI
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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2.8L - On Board Diagnostic (OBD) - BDF (A4 Platform)
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On Board Diagnostic (OBD)
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Measured value (data) blocks
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Measured value blocks, display groups 70...77 - Reducing emissions, evaluating
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Display group 77
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Display group 77
Fig 1: Display Group 77 - Reducing Emission, Secondary Air System
Courtesy of VOLKSWAGEN OF AMERICA, INC.
NOTE:
In the previous graphic, for Evaluation, refer to:
Evaluating display group 77, display zone 4 - Secondary air system diagnosis
Evaluating display group 2, display zone 4 - Mass Air Flow (MAF)
Evaluating display group 1, display zone 1 - Engine speed (idle speed)
Note on display zone 3:
The total range is given.