Hi I have a 94 LS400 with 96400 miles. I had felt a pull with the engine during acceleration and at idle. Thought it might be a transmission problem so I changed the fluid and filter. When we put it in to idle to shift we noticed sparking from the driver side coil and arcing to the engine coolant valve. Now the engine is missing and when I accelerate the transmission is not engaging. Is this a new coil, plugs, wires issue with the sparking? And is this maybe low ATF Fluid for the transmisson? Any help would be wonderful! Thanks!!!!