I was drivin my 87 supra last night and it was drivin fine and boostin normally when it all of a sudden I heard an exaggerated BOV sound and then my car just died out..the engine didn't shut off completely but everytime the rpm goes over like 2000 the engine just dies out. I looked at it this morning and there's no signs of damage to the turbo or anyhting else...the car starts up but just dies when stepping on the gas...does anyone have any clue what could be the problem? All help is appreciated...