How do you reset the fob for a 1998 ford ranger?

The 1998 Ford Ranger didn't have a "fob" in the modern sense (a key fob with a remote). If you're referring to the key itself (the metal part), you can't "reset" it. If the key is broken or doesn't work, you need a new key cut and programmed by a locksmith or a dealership. They'll need to verify ownership of the vehicle.

If you're having issues with the *ignition*, that's a different problem and not related to resetting a fob. Try these troubleshooting steps for ignition problems:

* Check the battery: A weak battery can cause starting problems.

* Clean the ignition switch: Dirt and debris can interfere with the ignition switch. Use a contact cleaner specifically designed for electronics.

* Inspect the ignition wiring: Look for any loose, damaged, or corroded wires.

If you're experiencing other issues and you think it's related to a remote entry system, be aware that 1998 Ford Rangers did *not* come standard with factory-installed remote keyless entry. Any remote functionality would be aftermarket and would require a different resetting procedure (if even possible) depending on the specific aftermarket system installed. You'd need to locate the aftermarket remote system's documentation or consult a professional to address those issues.