ok heres the rundown i just put a turbo kit on my stock gsr along with evo 560cc injectors and resistor box also had my ecu chipped for the setup.

issue: i fired the car up idled smooth for about 5 sec then all the sudden it starts idling like a subaru so i checked spark and it is getting spark but when i pulled wires 1 and 4 they were the dead cylinders. so i figured maybe the injectors were bad so i switched only cylinder 1 and 2 injectors.......fired it up and now 1 and 4 are firing and 2 and 3 are not! wtf am i missing here. i never switched 4 but now its firing since i switched 1 and 2 and 3 was firing before the switch and now its not.

i checked voltage to all the injectors from the resistor box, and from the injectors to the ecu had 12v everywhere( at the resistor box, ecu and injectors.

 

If you switch injectors from a "dead" cylinder with one from a working cylinder and the "dead' cylinder starts working and the working cylinder is now not working, it can only be the injector. 94

 

yea to a point, but i didnt switch injectors with the one cylinder(4) and it just started working for no reason when i switched 1 and 2. either way fired car up this morning and 1 and 4 where not firing again but 2 and 3 were

 

Well then, it has to be either power, [12V+] for the injectors from the PGM-FI Main Relay, [through resistor pack], I would check resistor pack, as it is only two cylinders not working.
Question, is there power at the "dead" cylinder injectors, when engine is running?

Or there is a problem with the ground pulse from the ECU/ECM, have you checked to see if there is a pulse, [ground] on the injectors of the "dead" cylinders, with the engine running?94

 

well thats where i think the problem is i dont think the the ecu is grounding the circuit like it should be cause i have 12v going to all the injectors. when the car is running i have 12v on both wires going to the injector. i am having the ecu checked this tuesday cause thats the only other thing i can think of, i mean i have checked all the things i thought it could be i.e grounds, power before resistor box, and after, power at injs. and ecu.

 

It is either the ECU/ECM or the wiring between the ECU/ECM and the injectors, have you done a continuity check on the leads to the injectors? 94

 

no just checked power at ecu from each injector