Bakerc1993

Hi all, New to the forum but really hopeful someone can assist me as I'm at my wits end with trying to get the bike to turn over! I have a sinnis 125 terain that is coming up with a p2301 error code. I've replaced the whole wiring loom, ignition coil, starter motor, battery spark plug itself and still coming up with the error code? Engine goes to fire up but then cuts off. I've had the spark plug out and it appears if I delete the code and then go to start the spark is strong but as soon as it goes to tick over the spark stops? Then the error code reappears? Anyone have any indication of what the issue could be and where to look next? Any advice will be greatly appreciated. Chris