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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (2.0L On Board Diagnostic (OBD) - Aba (A3 Platform)) >> Read Measuring Value Block (scan tool function 08) >> Measuring value blocks, display groups 70 to 79 (reducing emissions), evaluating >> Display group 70 -Reducing emissions- EVAP system diagnosis (fuel tank venting system)

Display group 70 -Reducing emissions- EVAP system diagnosis (fuel tank venting system)

WARNING: This page is about a different car, the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, and 2000 Volkswagen Cabrio. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Display Group 70 - Reducing Emissions (EVAP System Diagnosis)
G03365662Courtesy of VOLKSWAGEN OF AMERICA, INC.
NOTE: TVV means fuel tank venting valve (EVAP canister purge regulator valve). The diagnosis can only be initiated once per engine start.

Notes on display zone 2: 

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