50 liters ( 13.2 U.S. gallons )
The 2002 Ford Focus runs on regular unleaded.
Yes
Fuel filter.
Drop the fuel tank!
In the gas tank.
On a 2002 Ford Focus : In the front passenger footwell , behind the kick panel ( there is an access hole )
Typically the pressure sensors are in the top of the fuel tank.
13.2 gallons
IN the gas tank.
Yes.
Up in a little nook at the right front corner of the gas/fuel tank.
Check the fuel pressure on the Focus wagon as well as the EGR valve. If the fuel pressure is low or the valve is clogged then the car could have these problems.