So, funny break down. My test port on my high pressure fuel pump fell out today. Car runs out of fuel really fast. Dealer does not sell it separately from the $750 fuel pump. NAPA sells the pump for $250, but with no test port. I’m now looking at just a pipe plug for now, but nothing will be open until Monday. Does anyone know what size/pitch the valve is? Other wise I have to remove the pump to take it to my hydraulic shop to find a proper plug. Metric fittings are a bit hard to come by here in Oregon, USA.