Ok to start I have a 2004 Superglide EFI with 18,600 on the odometer. I bought this bike brand new and have yet to have a problem out of it. I was riding yesterday as normal then I pulled to a stoplight and Check engine light came on hen it just started dying out really bad actually died twice on le then started back up and ran normal got home and self tested it It threw me two codes po118 Sensor Voltage/High Efi & P1356 Rear Cylinder No Combustion I checked for spark on both cylinders looked good and changed my plugs and is still running good but light is still on.Can anyone help me to maybe see what this is?

 

could be a coil problem. check the plug wires to be seated in the coil and check wiring connections (terminals) to be tight and clean. your error code will remain for about 50 starts then cancel out.