1992 Subaru Legacy Timing

Engine Mechanical problem
1992 Subaru Legacy 4 cyl All Wheel Drive Automatic

Why would have all three pulleys set at TDC-by the #1 piston, and the starter kicks over, but when I set the the timings marks from the timing mark on the crankshaft position sensor, to the timing mark on the crankshaft sprocket, it starts erratically, runs 2 or 3 seconds and dies. I checked. In other words the timing marks are different. Also, when I set the canshaft pulleys to the timing notch, one of the pulleys always has some free play (Usually the right side pulley-passenger side) On the left side pulley, I allways need to start about an inch away from the timing notch, so when I pull it back to the timing mark, this gives me enough slack so I can get the Tensioner pulley on, then I woll pull the small allen wrench out of the tensioner holes so the belt tightens up. Is this correct. Also, if I have good gas out put coming out of the fuel pump filter when I turn the starter over-I have good spark-Compression is ok, then what else could it be? Fuel Injectors-Crankshaft/Camshaft position Sensors-ECU and how would I check these? Thanks alot!