lemon-mirror:
Home >> Acura >> 1986 >> Legend Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Evaporation System >> Component Testing >> Two-Way Valve

Two-Way Valve

  1. Remove fuel filler cap. Remove fuel vapor hose from liquid/vapor separator pipe. Connect vacuum/pressure pump with gauge to hose and slowly draw vacuum while observing gauge.
  2. Vacuum should stabilize at .2-.6 in. Hg as two-way valve opens. Reverse pump and gauge connections and slowly pressurize vapor hose. Pressure should momentarily stabilize at 1.0-2.2 in. Hg as two-way valve opens.
  3. If valve does not respond as outlined, check hose connections for leaks. If hose connections are okay, replace valve and retest.
· About lemon-mirror