To start with its a rb20det in my 32, sometimes after a bit of a hard run it'll do it, and other times just after it gets up to operating temp. if i try to accelrate it suddenly loses all power but no warning lights come on, and often stalls, then it'll run fine again and i can push as hard as i want....
I also have a light on at the moment now that looks like a cat conerter with heat coming of it, red light in the dash.....on idle it stays on and when reving it flashes....whats it trying to tell me???