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Home >> Volkswagen >> 2014 >> Tiguan R-Line, AWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> 2.0L - Fuel Supply - Engine Code: CCTA >> 20 Fuel Supply >> Diagnosis And Testing >> Fuel System, Checking For Leaks >> EVAP System Function Overview
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EVAP System Function Overview

Fig 1: EVAP Canister System Function Overview
GWWN20-10399Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Evaporative Emission (EVAP) Canister
  2. Evaporative Emissions Tester - Adapter 55 KLI 9210/55
    • Installed position.
    • Used during the fuel system leak test.
  3. EVAP Canister Purge Regulator Valve 1 -N80-
  4. Vent Line
    • To the Throttle Valve Control Module -J338-.
  5. Solenoid Valve
    • For the leak detection pump.
  6. Vacuum Line
    • To the intake manifold.
  7. Air Filter Housing
    • For the leak detection pump.
  8. Leak Detection Pump -V144-
  9. Fuel Tank
  10. Cap