Using a multimeter across the pins measure the resistance. If the measurement is very close to being the same(between the black top and 1jz) then you are good to go.
For example, 4agze I had originally were 3.5 vs. 7mgte which I fitted being 3.0-3.1 ohm.
May I ask why you are changing /increasing the flow rate? Boost?
Also, what ecu are you using?