Fuel is not getting into the engine. We removed the injectors and when we turned the key fuel is making it TO the injectors, because it spilled out all over, but it stops there. With everything in place the car won't turn over, so the gas is making it to the injectors and no further.
Using a 6-12V test light we checked the power going to the injectors and found that the positives are always hot, but the ground which we were told is supposed to pulse does not come on at all. It was suggested that the current is less than 6V, so we need a smaller tester to see it and that it is in fact pulsing and that the problem is that the injectors are clogged from sitting for so long. But even if the current is under 6V shouldn't it have at least made the light come on dimly if there was any power?
So, seeing as I already know that the injectors need to be replaced if it IS pulsing and we just aren't seeing it, my question is this:
If we test it with a tester that can pick up smaller voltages and find out for sure that it is NOT pulsing, what could be causing this lack of pulsing?
Our first guess was the ECM, but everything else the ECM controls is working, so is it possible for just this one function to have stopped working or is it something else? We've already checked all visible wires under the hood and don't see any that appear torn, loose, or chewed.
We checked the fuse box under the steering wheel, but none of the fuses specifically say "Fuel injectors" despite the fact that everything else is labeled and I don't have a specific diagram for this exact model's fuse panel, so I'm not really sure which one to be checking.
Thanks ahead of time for any help you can offer.
(On an unrelated note, I have gold painted keys. Is that standard issue? This is my first Cadillac)