EVAP 2-Way Valve
- Remove fuel filler cap. Remove fuel tank vapor hose from EVAP 2-way valve. On Integra, EVAP 2-way valve is located on fuel tank. On 3.2TL, EVAP 2-way valve is located in front of fuel tank. On 3.5RL, EVAP 2-way valve is located at left side of engine compartment. Connect hose end to a "T" fitting connected to a vacuum/pressure gauge and vacuum pump. See Fig 1.
- Slowly apply vacuum while observing vacuum/pressure gauge. Vacuum should stabilize (valve opens) momentarily at 0.2-0.6 in. Hg. If vacuum stabilizes within specified range, go to next step. If vacuum stabilizes less than or more than specified range, replace EVAP 2-way valve and retest.
- Move vacuum pump and vacuum gauge from vacuum side to pressure side. See Fig 1. Slowly pressurize vapor line while observing gauge. Pressure should momentarily stabilize (valve opens) at a pressure greater than 0.3 in. Hg. If pressure stabilizes as specified, valve is okay. If pressure does not stabilize as specified, replace EVAP 2-way valve and retest.
Courtesy of AMERICAN HONDA MOTOR CO., INC.