If you're having fuel-related problems, you'll need to troubleshoot the specific issue. Common problems include:
* Empty fuel tank: The most obvious! Add fuel.
* Fuel pump failure: This requires professional diagnosis and replacement.
* Fuel filter clog: This can be replaced relatively easily by a mechanic or a DIYer with some mechanical skills.
* Fuel injectors: Faulty injectors need professional diagnosis and replacement or cleaning.
* Electrical problems: Issues with the fuel pump relay or wiring can prevent fuel delivery.
If you're experiencing a specific problem (e.g., the car won't start, the engine is running rough), describe the symptom, and I can give you more specific advice on potential causes. You might need to consult a repair manual or a mechanic.