Prado 150 series starting issue

Hi, I was wondering if someone could help me with diagnosis:

When starting the prado, it starts idles for about 3-4 seconds then turns off and shows engine warning light. When I try to start again it takes about double the time to start normally (not straight away) then runs fine. This only has happened after driving about 100kms of driving and not every time.
Maybe once every 2 weeks.
Any help would be appreciated