My EGR valve broke due to missing motor mounts(engine was jumpin up when I accelerate), would this be the cause of a hesitation or pause.

My motor mounts came off some how. I noticed that my egr valve broke as I was banging on the firewall when I pressed the gas yo go. I can't say this all happened in one day but. I then started getting a pause before it would take off. If I sat at a red when it turned green I press the gas an the rpm would drop below one and the car would want to die. Bur letting go of the pedal it started idling normally. I have to pump in order to get the engine going. Please help. If u can thatnk u! If u need more info please ask. Justin