The nozzle in the injector (packer jet assembly in the well) is plugged. The leathers are OK but you will have to pull the packer and clean the nozzle, replace the leathers and reinstall it. Be careful not to let anything get in the pipes as it will stop up the nozzle again. Good luck, anytime you have to open the packer system you stand to plug the nozzle. The injector builds the pressure, not the pump.