My buddys car is giving him some problems im trying to help him out bad misfire one cylinder is out, pulled the injector plug and there was no difference in characteristic of engine when i pulled that injector plug , whenever i would pull any other it would misfire alot heavier so i think i found the problem, Question is how can i check if that injector is any good? Also I did check the harness and its getting power, i have a spare harness im just going to swap for him real quick because the plug was giving me mixed singnals possibly bad contact on plug. But i think that the injector might not be good or has a bad/burned resistor driver in ECM, anyway to test out an injector i only have a multimeter dont have a power probe, can i simply place another injector plug and feel the injector to see if it pulses not sure if that would be an ok way to quickly test it? Maybe try to OHM the injector? see the different readings accross boards and see if i can find something outa wack?