Changing air filter and fuel filter

all impreza recommends high ROM.
although 99ron or 100ron is recommended, some uses unleaded for non-turbo and of course notice a sligth defference in performance using high ROM fuel.
in your case is the reverse, means does't need to drain for a change.

a car maker fixing a car over 3 yrs old???what..are you dreaming?even if it has a full service history with a subaru dealer... BUT.... you could phone subaru head office and being very nice and polite, ask them....

Could be clogged injectors, bad fuel filter or bad fuel pump. Do you hear a hissing sound when accelerating?

Either out of gas, clogged line or bad fuel pump.

remove pan at bottom of trans drain oil, replace filter

are you sure you do not have a wrx-sti??? an H7 is the low beam bulb for a non sti......an sti has a different bulb. D2S. HID lighting.

are you geting fire from your coils to the lkspark plug? it all sound like you have a sencer gone bad

The system is pressurised! Be careful!

Remove your fuse for the fuel pump.

Start the engine and idle until the engine stops.

Try starting it again to make sure there is no more fuel in the system.

This will depressurise your system. Undo your fuel filler cap just to make certain!

When this is done, push the clips down the pipe away from the filter, or remove the clips.

Pull off the pipes and replace the filter.

Reattach the clips in the same place.

Screw in the fuel filler cap.

Replace the fuse and crank the engine until it fires.

Regards, Andy

On both cars, check the fuel pump/guage harness connector under rear seat - the old fuel pump draws too much current and melts the connector causing poor conatct & voltage drop off. Easy to see usually, just cut the two fuel pump wires from either side of the connector and re-join with new crimp connectors, or solder joint.

not from inside. but you can pull the fuel pump fuse for the same effect