RepairPal Certified shops can diagnose and repair your 1998 Cadillac Catera. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
There is a fuel cutoff on most cars nowadays. Its a safety switch that cuts off power to the fuel pump in case of an accident. Usually all you have to do is reset it, if you can find it. I think it is located in the trunk on these cars.