Hi Guys

When i give the car has warmed up if i turn it off and try to turn back on it wont, if i let it cool down for like and hour then it will start again, i can clutch start the car in this process while it is warm, does anyone know what it could be, im thinking that the starter motor relay is heating up and not responding, Also it happens when i use Vtec alot, it didnt use to do this before i tuned it to allow vtec to kick in, could it be a ECU problem, I would much appreciate it if you guys can help me out