I have a 1990 300ZX Automatic that won't start at all. When I turn the ignition it just makes one click under the hood. I thought it was the battery, but I charged it and it is okay. I can hear the fuel pump turn on. I think it may be the starter but I don't know. I swapped some of the ignition relays around just to see if one was maybe bad and the problem would move but no luck. Has anyone had the same problem. Please help!!!!