1993 Toyota p/u with no power.

Have the compression checked. You could have low compression on both to cause the poor performance. Do you have overheating and/or coolant losses issues?

Apart from the compression, other possible causes are stuck fuel injectors, bad spark plugs or related components.

It is possible but before removing the injectors, ensure there is battery voltage at one of the wires when ignition is turned on. You can try listening to the injectors to check if they are clicking when engine is running. If no clicking and battery voltage is available, you would need a noid light to test if the injectors are pulsing. To check if the injectors are stuck in open position, you would need to remove them and while attached to the fuel rail ( ensure they are tightened as fuel pressure can force them out of their seats) and turn ignition on. If any are leaking, fuel would be flowing from the injectors.

Chart shows the compression specifications. The specs you have is the compression ratio. What is important is the psi. They are all way below minimum with #4 having extremely low compression. Most likely the valves are leaking. Have the valve clearances checked and try a wet test, by pumping some engine oil into the cylinders via the spark plug holes and cranking the engine without the spark plugs. Retest the compression and see if they increases.