alright so I recently bought a 94 cx hatchback with a gsr swap.the owner already had a fuel cut off switch installed.when I went to start the car it started right up and the rpms were at 1500 and just died right away.it did the same thing the 4 other times I tried.now I remember when I left the switch on and I tried to start it,it would do the same thing.so my question is does anyone know what's wrong with it?