vibrating low revs - loss of power
 

today is the first day I took out my integra but when i started it, it started to vibrate and rev really low 900rpms. I would then proceed to accel the car normal but I notice the huge lost in power with high revs per gear. During the same time their is a vibrating sensation from beneath the vehicle ( not sure exactly where ). The only thing I've done last before driving it was changed the deck and I unplugged the battery as you are suppose to. I assume it reset my ecu so thats why my car is not running right. the ecu is chipped too so maybe that has something to do with it after I unplug the battery.

the car ran fine before I installed the new deck.