hey guys i have a turbo 3800 VP and i drove it into town the other night and when i turned it off i couldnt get it to run again i limped it home. now when i try to start it, it will kick over and start but it starts off idling way to high then starts to drop over a minute or two and then i lose fuel pressure and it conks out.

now ive changed

CAS
Fuel pump and filter
checked for spark
plugs and leads


its got a haltech platinum series interceptor if that helps

any help would be appreciated
cheers.