ok folks on the way home from my meet the other night the check engine light came on and wouldnt go off got home and and left it for a bit and started the car again same again. Wednesday morning checked it and light was off

Had it checked today no fault code recorded, or showing up. Heading home tonight from lisburn light came on again, flashed on and off a few times but stayed on mostly. Only seems to be doing it after being on the go for a while.

Has anyone any ideas, nothing seems to be loose, and i have a fuel filter enroute.