I have a brand new faucet not getting any water pressure? Water Pressure was fine before putting new faucet in. How do i troubleshoot this problem and get my bathroom sink running properly again?

If your pressure still has issues after clearing the aerator as mentioned by the first answer....re-remove the aerator .....turn your cold water on full blast for a second or two...and repeat a couple more times....do the same with the hot side.....watch out for the hot hot water...and have a towel handy to control splash....if still no improvement....go down under your sink and turn off the two supply valves.....go back up top and turn on the faucet cold water full blast...nothing should come out....lay your towel over the faucet and sink because your about to clear out your supply valve and it could get real splashy. okay...cold valve open 100% on the faucet...now go back down below and turn on the supply valve on the right side...which normally is the cold water supply....open it 100% briefly then off...and repeat twice more.....do the same on the hot side...be careful of the hot hot water. then turn your faucet off....turn both supply valves back on....100%....then back off about a quarter turn.....re-attach the aerator (after checking it for more debris) and test...if there is debris in your valve cartridge....flush it too...if you feel content of your abilities...and lastly...any time you do work on your water supply system...make sure to know where and how to turn off the house water supply....first...good luck

It is very common when you first install any faucet, for the aerator on the very end of the faucet (where the water comes out into the sink) to plug up with rust or sediment. Because you had to turn off water supply, it churns up this sediment in pipes. It initially plugs up the filter/screen in aerator. Just unscrew the end & flush it out with water. Then reattach.