engine is f22b dohc from jdm prelude si, car is accord cd3ex, wires from accord cd3ex

i test my injector from jdm prelude si - he open from 12v (check the resist = 12 Omh)
and test injector from old engine - he open from 3v (check the resist = 3 Omh)

what need do with resistor box?

 

Some vehicles (depending on year) didn't come with a resistor box.
I didn't understand what seems to be your problem yet.

 

he's saying the new DOHC injectors are higher resistance than the old ones and he's asking if he needs to modify the resistor box (...or continue to use it) with the DOHC injectors. if i'm reading it correctly

PTVDesign: i don't know the dividing line between high impeadance and low impeadance injectors so i can't say what needs to be done in that respect.

i can say that if you're old injectors fit the new fuel rail and intake manifold, you should be able to run them without any issue, and without touching the wiring or the resistor box.

 

What injectors are you using the DOHC F22b or the Accord injectors?

Prelude injectors are High Impedance = 11-13 Ohm - No resistor box
Accord injectors are Low Impedance = 2-3 Ohm - Requires resistor box

So if you are using the Prelude injectors you will want to get rid of the injector resistor box. Splice/solder the single 12v YEL/BLK wire directly to the 4 RED/BLK (+) injector wires.

If you are using the Accord injectors you would keep the resistor box.

 

thanks, i connect 4+1 wires and engine is working perfect...