92wrx

no the tank in the back end of car beside fuelpump

what is the little tank for on the passanger side of my wrx with round cover...my car wont start due to over fueling so just looking at fuel system...this little tank has no fuel in it but about 1 cm sitting in the bottom...what is the purpose of this tank

mine has the long cam sensor cable on it that plugs up under firewall and injectors are fine

there is a slight fuel smell in oil now

right new motor in my wrx and turn the key all i get is this dead sounding whine as it turns over...have been through everything and dont seem to have any issues but now have run a gauge off my fuel rails and i got 90 psi fuel pressure...all 4 plugs are soaking wet...unplug the fuel pump power and wind it over...it starts poping and turning over with a bit more life but still wont start (no fuel of course) anyone have any ideas...please help....ive got new plugs,coils are ok...timing is spot on