LEMON Manuals: Even more car manuals for everyone
Home >> Volkswagen >> 1999 >> Golf Wolfsburg Edition, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (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)

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2005 Volkswagen Jetta, 2005 Volkswagen GTI, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Readiness code

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: