Check Operation
WARNING: This page is about a different car, the 2004 Kia Rio. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
The fuel system remains under pressure when the engine is not running. Release fuel system pressure before disconnecting any fuel line to reduce the chance of personal injury or fire damage to vehicle components. See RELEASING FUEL SYSTEM PRESSURE .
Listen for fuel pump relay clicking as ignition switch is turned "ON".