What you might be looking for depends on your specific issue:
* To reset the average fuel economy display: This is usually done through a sequence of button presses on the instrument cluster (the area with your speedometer and other gauges). Your owner's manual will detail the exact procedure for your Ranger.
* To clear a fuel system diagnostic trouble code (DTC): This requires a scan tool that can communicate with the vehicle's onboard diagnostic system (OBD-II). A reset button doesn't exist for this; the code is cleared through the scan tool.
* To resolve a fuel-related problem: If you are having problems with your fuel system (e.g., the car won't start, the engine is running poorly), a "reset button" won't help. You need to diagnose and fix the underlying mechanical or electrical problem. This could involve anything from a faulty fuel pump to a clogged fuel filter.
Consult your owner's manual for information on resetting the average fuel economy display. If you're experiencing fuel-related issues, you'll need to troubleshoot the problem or take it to a mechanic.
