I have 2 pairs of injectors one high impedance and one low impedance. The question is, cant these be used in the same system? One pair primary, one pair secondary? And finally, which would be better to put in each: low or high with primary, and low or high in secondary?

Thanks a Latte'

 

first you must figure out what impedence your wiring harness accepts.

86-87 had low impedence 88-93 had high

you can miss match different impedence injectors but you must install the correct resistors