My SUV stalling when i stop and dies

It doesn't have to be a hard part failuire. You could have a vacuum line disconnected, or an air intake leak somewhere, causing an inordinate amount of air to get into the engine, causing it to starve for fuel comparitively. A good engine performance technician can get to the bottom of it probably fairly efficiently. What you can do: check for any disconnected or leaking hoses under the hood (air / vacuum) and you may find something... Conversely - sure, it could have a fuel pressure or supply issue also.