Have Some Problems, need direction I thought it was a fuel thing
 

I bought this 87n/a supra like 2 months ago, it ran gr8 for the first month and half, now it wont start, i change my ignition coil, then still nothing, so i bought a can of starting fulid and the car wanted to start.. so i was thinking fuel problem, so i dropped the tank and changed the pump, and the filter.. it fired right up! now 1hr later i get no love..
Any ideas...

Did you clean ut the tank ? Perhaps there is some crap in there that is causing fuel starvation.

Timing issue?
 

im wondering if its possible to adjust the timing myself, im equipped with a select amount of tools, and a hanes book..
reason i ask is it started today, and i could hear the misses, it gives me chills when i hear such things.. lol
but my thottle position sensor is bad, not yet replaced.. will that throw it out of time?, the reason i know its bad, 51 was the only code i got after ruinning my diagnostics..