No spark and i can only get 5V at the coil.

The only time I reference voltage is with the key in the "on" posiiton(turned forward to where the oil light is on, and just before i start the car). Ill have to make a video to show you what i mean. But literally if I take the brown wire off the coil turn the key to the "on" position and measure the voltage it says 10.5volts, then I put the connector on the positive terminal on the coil it then drops to 5.5volts.