How do you correct fuel flow to make engine run smoothly?

To correct fuel flow for smooth engine operation, first ensure that the fuel system components, such as filters and injectors, are clean and functioning properly. Adjust the fuel pressure regulator if necessary to maintain optimal pressure. Additionally, use the engine control unit (ECU) to fine-tune the air-fuel mixture, ensuring it remains within the ideal range for efficient combustion. Regular maintenance and diagnostics can help identify and resolve any issues impacting fuel flow.