1998 hijet 660 s110p EFGS Anyone know what this part is for? Solenoid, valve? the grey nipple attaches to vac line #22 and goes to the carb and is pulling vacuum while truck is running. The green nipple is open to air and has a black rubber funnel shaped guard on it. There is 12v at the connector from the truck but i can not blow or suck air through the unit whether it has 12V or zeroV (unplugged). Perhaps it requires 24v to activate? is it possibly a vapor purge or fuel shutoff? i don't understand why its vented to atmosphere if it has vacuum... wouldn't it suck in dirty air? or if its a vent, is it possible that vac carb hose can be vacuum until the engine is warm and then build pressure when hot? Wondering if this switch/valve is the reason that the truck stutters and stalls at 20-30 minutes and then restarts and will run for hours after that. Although hot starts take a few cranks and some gas pedal. Perhaps the stalling 20 min in and harder hot starts are unrelated, but i was wondering if this relieves fuel vacuum or purges vapor?
Turns out its called a emissions Switch Assembly Vacuum Daihatsu Part # 88680-87214-000 if anyone is looking for one. Not sure why there is one nipple is connected to the carb via vac line #22 and the other nipple is open to atmosphere. Could it be to relieve pressure or vacuum?
