2.2 BVSV There are two BVSVs on the stock cruiser located in the lower thermostat housing (they're referred to as "BVSV(1)" and "BVSV(2)" in the FSM). BVSV(1)will be kept after desmogging because it's part of the EVAP system, where BVSV(2) will be removed and the hole plugged. Both BVSV(1) and BVSV(2) are shown in the diagram below. BVSV(1) is in the foreground and has the labeled ports (a) and (b). BVSV(2) is outlined in the background behind and below BVSV(1). Note that these valves are not identical - they operate at different temperatures. If BVSV(1) is damaged, BVSV(2) can be used instead but the engine will run poorly during the warmup phase.
Maybe another pic here would be useful to show the location of the BVSVs. Version 2 / 01-May-2011 Page 5 of 24