People here will help you, but your going to have to provide some more information. Is it an automatic? Has there ever been any other problems with anything else with the car in the past, how high is the engine revving until it cuts off? Do you have any after market parts like a cold air filter or header that may have inadvertantly caused the car to go into "safe' mode?
The more descriptive you are, the better the chances someone here will be able to help you.
