new b16 probs

Ok, so I got the new ecu for those familar with my saga. It turns out it is a chipped pm6 by zdyne, but it has a little bit earlier vtec crossover, more aggressive fuel map, and disabled 2nd o2. I put it in and my vtec solenoid code went away (yaayyy!). But, the bucking I was experiencing before is worse and more frequent, and I cant really feel much from vtec, although it seems like something is happening. I even got a backfire :( . What do you guys think? For the swap, we replaced the cap and rotor, plugs, and plug wires. The valves were adjusted and the timing was set. There is some kind of ignition problem I guess. The ecu is throwin no codes, so I don't know what the deal is. Thanks...

anyone in Delaware area wanna let me borrow there working pr3 or pw0? :p ;)