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Home >> Volkswagen >> 2005 >> Jetta TDI, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (1.8L - Fuel Injection Ignition, Engine Code(S): AWW, AWP (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Measuring Value Block >> Measuring value blocks, evaluating display groups 70 to 79 (emission reduction) >> Display group 70 (emission reduction) Evaporative Emission (EVAP) system diagnostic (fuel tank venting system)

Display group 70 (emission reduction) Evaporative Emission (EVAP) system diagnostic (fuel tank venting system)

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Display group 70 (emission reduction) Evaporative Emission (EVAP) system diagnostic (fuel tank venting system)
  • Engine running at idling speed
  • Coolant temperature at least 60 ° C
  • Control module in mode 04-Basic settings
Read Measuring Value Block 70 Indicated on display    
xxx% xx.x%   Text      
1 2 3 4 Display zones Specification Evaluation
        Result of diagnostic (Test ON / OFF or TBV OK / n.OK) TBV OK ---
      EVAP purge flow rate 0 to 100% ---
    Oxygen sensor control deviation in TBV diagnostic -7.0 to 7.0% ---
  EVAP canister purge regulator valve duty cycle 0 to 100% ---
NOTE:
  • TBV means fuel tank venting valve (EVAP canister purge regulator valve). The diagnostic can only be initiated once per engine start.
  • For display zone 1:
  • The entire display range is given.
  • For display zone 3: