What causes a 1997 t100 to crank but not start?

A 1997 Toyota T100 that cranks but won't start could be due to several issues. Common causes include a lack of fuel reaching the engine, which may result from a clogged fuel filter, a failing fuel pump, or an empty fuel tank. Additionally, problems with the ignition system, such as faulty spark plugs or a malfunctioning ignition coil, can prevent the engine from starting. Lastly, issues with the engine's sensors, like the crankshaft or camshaft position sensors, could also be responsible.