### Fuel Filter

#### FUEL PRESSURE RELEASE PROCEDURE

The fuel pressure must be released on fuel injected models before removing the fuel filter. To relieve the fuel pressure remove the gas cap then remove/disconnect the fuel pump fuse, fuel pump relay or electrical fuel pump connection to disable the electrical fuel pump.

Start the engine and run, after the engine stalls crank the engine a couple times to release pressure. Turn ignition switch OFF and install/connect fuse, relay or electrical connection to fuel pump.

On some late models the "Check Engine Light'' will stay on after installation is completed. The memory code in the control unit must be erased. To erase the code disconnect the battery cable for 1 minute then reconnect after installation of fuel filter. Refer to Sections 4 and 5 for more information.

Fig. 1: Fuel filter location

Fig. 2: Loosen the fuel filter's hose clamps before detaching the hoses

Fig. 3: The fuel filter is held by a metal clip

Fig. 4: Fuel pump relay location — 1982 200SX model

Fig. 5: The fuel pump harness connector is in the tool box on the rear right-hand side on the 1984 and later 200SX models

Fig. 6: Replacing fuel filter — 1985 Stanza

Fig. 7: Reducing fuel pressure — 1985 Stanza

Fig. 8: Removing the fuel pump fuse — 1987 Stanza

Fig. 9: Fuel filter location — 1987 Stanza

Fig. 10: Install fuel line clamps

Fig. 11: Removing the fuel pump fuse — 1990 240SX model

Fig. 12: Fuel filter location — 1990 240SX model