[kiaowner1]

Where is the filter located? I do not believe it is in the engine compartment.

I have the tool to disconnect it, but it is not where I thought it was.

Kiaowner.

[CaptainRich]

There are two: one in the tank that is low pressure and doesn't get routine service, and one high pressure filter, located in the front passenger side engine compartment, adjacent to the fuse box.
Use caution if you're changing the filter yourself. They call that a high pressure filter for a reason. And have the replacement on-hand before removing the old one

[TxGreaseMonkey]

Be sure to disconnect the negative battery cable first. Find out how to depressurize the system. It may be by removing the gas cap but find out.

[jkerbow]

Its located on the passenger side underneath the battery. It is NOT adjacent to the fuse box. The filter is laying horizontally under the battery. Removal of the battery would give better access to the filter.