HONDA 2003 Civic GX - Owner's Manual - Manual (Page 14)

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A manual shut-off valve is located
underneath the vehicle, near the rear
tire on the driver’s side. We
recommend that you locate this
valve so you can find it quickly.
The in-tank fuel shut-off valve is
controlled by the ignition switch.
When the ignition switch is in the
LOCK (0) or ACCESSORY (I)
position, the valve is closed, shutting
off fuel flow to the engine. It opens
when the ignition switch is turned to
ON (II). This is similar to how an
electric fuel pump works in a
gasoline-powered vehicle.
Fuel system maintenance and repair
should be done only by an authorized
Honda Civic GX dealer.
Bef ore Driving
Fuel System Components, Fuel Cutoff System
Manual Shut-of f Valve Fuel Cutof f System
13
MANUAL SHUT-OFF VALVE
Tampering with, or improperly
maintaining the high-pressure
fuel system can cause a
dangerous condition in which
you can be seriously hurt or
killed.
Never attempt to modify the fuel
system, and always have
maintenance performed by an
authorized Honda Civic GX
dealer.