Problem solved...
Changed out the Fuel Pressure regulator, tried to start the car.... Nothing...
left it for a few days, tried to start it with the spare key, no luck... motor didn't even turn over... guess the chip in this key is farked... Tried the original key again and boom it fired up.
I was suppose to have it towed to the workshop the next morning but now it seems fine.
Thanks to all those that assisted with guidance.