The car is a 90 loyale turbo 1.8L. The car will start and will run with rough idle for 10-15 min and then shuts down. It still has spark and fuel pressure. And when you put a noid light on the injector harness it looks like the light is too brite when running but the noid light will not light if the car shuts down. And when the car shuts down if you check with a test light you have power on both leads of the inj. harness. I was told it could be the injector resistor, is this possible?

The first things that I would check would be:Check your fuel pressure make sure it isn't too low.Too low may also indicate plugged fuel filter also.