nisjay wrote: I stuck a piece of paper in the cylinder...
NEVER NEVER NEVER stick anything into a cylinder except fuel, and spark. you are only asking for trouble.
Are you getting fuel to the fuel rail? Are all injectors not working or just one? Is this after a swap or other change ot the engine?
If it is just one injector and you read infinet ohms when reading the coil of the injector then it is probably bad. If all are reading hte same then you either are testing them wrong or have had a major problem that caused them to all fail at once (not likely but possable).
Check further and report back.