I've replaced the spark plugs, wires, fuel pump, and gave it a new battery. I have not replaced the fuel filter yet, but I have it. Today, i attempted to start the 86 cressida that's been off the road in FL since 2007. I cut a hole through the rusty trunk to gain access to the fuel pump assembly, the fuel tank is obviously rusted out so what I did is I extended a couple fuel lines to the assembly and filled gas into a half cut gas can for the intank pump to temporarily pull fuel (planning to have an aftermarket trunk fuel cell). Upon cranking at first, it acted like there was no fuel until after a minute it started to sputter and shake which continued until the battery died. I tried to start it for about 5-10 minutes before the battery gave out, any other pointers while I replace the fuel filter? I couldn't get it to start, but it stumbled as if it wanted to w/ the check engine light going on and off. There was definitely a change once I replaced the pump and gave it clean gas. Could it just be the filter?