Hey scotty guys my 2001 Saturn l series cranks but does start I replaced the fuel filter and after a while it started fine on Saturday night then on Sunday it was flailing all day until late Sunday but on Monday the car is back to the way it was before I replaced the fuel filter millage 222,252 then i took it to a Firestone and they told me to change the fuel pump so i took to and independent mechanic to do the job and he told me it was a electrical problem with the starter and the security system ie security system was telling the car is was being stolen and thus preventing from starting it even though it is not stolen and the signal telling to start is faulty whats going on scotty?

find a guy who can fix security systems then, only a few really mess with that correctly