P0087 Kia optima 2012

Question

My Kia is showing a P0087 and need to know where the fuel filter is.

Answer 1

General Description 

The Low Pressure Pump (LPP) supplies 65 psi(4.5 bar) of fuel pressure to the High Pressure Pump (HPP).
Using the internally located Fuel Pressure Regulator Valve (FPR), the HPP will boost the fuel pressure from 580 psi(40 bar) at idle to a maximum of 1958 psi(135 bar).
The Fuel Pressure Sensor (FPS) confirms the fuel pressure and returns the signal to the Powertrain Control Module (PCM).
Fuel pressure during limp-home mode is 65 psi(4.5 bar).

DTC Description 

P0087 is set when the fuel pressure drops to 0 psi(0 bar) or below.

The fuel filter is on the sending unit inside the tank