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Home >> Volkswagen >> 1999 >> Passat GLX, 1.8 A >> Repair and Diagnosis >> Engine Performance >> System >> 1.8L - Generic Scan Tool - AEB, ATW, AUG, AWM >> ST-Generic Tool >> Select diagnostic function >> Diagnostic mode 8: Tank leak test >> Function
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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.
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