LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2003 >> Jetta GLI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 2.8L - On Board Diagnostic (OBD) , Generic Scan Tool - AFP, BDF (A4 Platform) >> Generic Scan Tool >> Select diagnostic function >> Diagnostic mode 8: Tank leak test >> Function
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic mode 8: Tank leak test: Function

This diagnostic mode checks the fuel system for leaks.

NOTE:
  • The Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- and Leak detection pump (LDP) -V144- seal the tank system.
  • Pressure of (max. 70 mbar) can be applied to the fuel system via the test connection (in engine compartment, right) and via engine leak detection spray (e.g.: G 001 800 A1) leaks can be detected.
scientia non olet · About LEMON Manuals