2013 Street Glide has rough idle. The codes P0501, P1353 and P1356. VSS sensor is low and no combustion in either cylinder. It started running rough after a fill up. Thought it was bad gas, siphoned out the tank and put 2 gallons in it and started it again. It never cleared the rough idle and seems to have gotten worse. I'm leaning towards the coil or is there something else?