Hi, I installed a homemade HHO fuel cell in my car, and now the car sputters at 3000rpms. Help? 2004 Accord?

Cell was made from 12 stainless steel plates, baking soda was added to water. Disconnected rubber hose from intake manifold, drilled a hole in the intake manifold rubber hose(just after the airfilter), Put hydrogen hose into manifold. Hooked HHO wires up to car battery(just held them there, to test). 14guage, 20 amp wire, also a 40amp fuse was used on the hydrogen generator. After I hooked it up, it sounded fine. I didnt proceed to hook the generator up. I test drove the car without the HHO and immediately at 3000 rpms the car would sputter and wouldnt go over 3000rpms. I tried to reset the computer by unhooking the neg. battery terminal, I checked the O2 sensors, they looked fine. I dont think there is a leak in the vacuum but will be getting carb cleaner to check. Thanks for your help. -Jacqueline