LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1992 >> LS 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Fuel Evaporation >> EVAP Vacuum Control Valve
April 5, 2026: LEMON Manuals is launched! Read the announcement.

EVAP Vacuum Control Valve

  1. Mark Vacuum Control Valve (VCV) vacuum lines for reassembly. Remove VCV from vehicle. VCV is located in-line between BVSV and EVAP canister. Using a vacuum pump, apply 2.76 in. Hg to top vacuum port of VCV. Blow into one of 2 lower vacuum ports. Air should pass freely between lower vacuum ports.
  2. Release vacuum from top vacuum port of VCV. Blow into one of 2 lower vacuum ports. Air should not pass between lower vacuum ports. If results are not as specified, replace VCV.
scientia non olet · About LEMON Manuals