From what i understand its built in to the fuel tank and pump, should be replaced around 100k miles
How you replace the cabin filter mazda protege 5 2003
The oil filter is located directly above the drain plug. It's well hidden and hard to see unless you know where to look.
Where is the thermostat location on mazda protege 2003?
location cylinder 2 mazda protege
how to replace the thermostat on a 2003 Mazda protege es 2.0
its under the dash on drivers side
The fuel filter on a 2003 Mazdaspeed Protege is located along the vehicle's frame, just past the fuel tank. It should be replaced every 30,000 miles for maximum performance.
How to know if air sensor not working on protege 2003
How do you replace power steering belt on 2003 Mazda protege ?1.6
where is the starter
You will need to drop the fuel tank and get close to fuel pump. Its a 100k mile part, based on Mazda
From the look of things theis car does not have a fuel filter. The only filter that has to do with the fuel seems to be in the fuel tank. A 2001 Mazda Protege (actually, all models from 1999-2003 including the DX, LX, ES, Mazdaspeed, and Protege 5) does not have an inline fuel filter. The only fuel filter it has is a "strainer" or a "screen", which looks like a nylon mesh "sock". This strainer is connected to the fuel pump, located in the gas tank. Although this fuel strainer does not require periodic replacement, it is recommended that it be changed if you are replacing the fuel pump.