Fuel Tank Pressure Release Valve

TWO-WAY VALVE:

Vacuum should stabilize momentarily at 0.2 to 0.6 in. Hg. (5 to 15 mmHg.)
Pressure should stabilize at 0.4 to 1.4 in. Hg. (10 to 35 mmHg.)

PURGE CUT-OFF VALVE:

1500 SOHC 16-VALVES VTEC-E:
Opens at 167° F (75° C)
All Other Engines:
Opens at 158° F (70° C)