I got some reman lt1 injectors, and found out they arent working. They are at 12 ohms, and heard they have to be around 15 for the computer to pulse them. I have a 94 z28. can anyone help me? I tried to start the car, and it wouldnt start

 

You have checked to be sure your fuses are good?

 

anything between 11 and 15 is fine thats a normal rating. when you say they dont pulse are you checking the wire for voltage, using a noid light, or just feeling the injector?

 

I was checking the wire voltage. I didnt check the fuses yet. Which ones should I check?

 

I believe there are 2 fuses in the U/H fuse panel and if memory serves, they are 7.5amp each.

With KOEO, there should be 12 volts to each injector. In order to pulse them the PCM pulls the other wire to gnd. So not only do you want to check for the presence of 12 volts, you also want to look for the presence of pulses (negative going) from the PCM. Remember some noid lights have short pins and are hard to contact the connections at the injectors from the back side. This has for some, given the false impression the injectors were not getting pulses.

You can also test for pulses with a test light if you don't have a noid light.