ok 88-91 crx si injectors are low impedence right, and require a resistor box to run with 88-91 crx si comp,right?obd 1&2 injectors are high impedence and require no res. box, so what does the res. box in 88-91's do raise the impedence???so the question is can obd2 injectors be ran in a 89 dx hatch with 90 crx si comp.,and no res.box anylinks or tech info on this would be greaty appreciated thanks for helping this newbe

 

OBD2 or OBD1 injectors on your 89 DX engine with MPFI conversion should work fine.

Impedance = resistance. OBD-0 injectors have a low resistance so they add the box to make more resistance.

 

i thought so, but not knowing much i wanted to make sure
thanks!!!