was up guys i just recently did a h2b swap on my car. i have these few problems that i can not figure out what in the world can it be.

jdm h22 running on a p72 ecu ,stock motor, car idle fine at 850rpm but when i start driving the car it starts to sputter and it will cut fuel then backfire. Then after the backfire it will go and keep sputter there are no cel or anything. :'(

dizzy?
timming?
changed ecu and nothing seems to work.

 

I would check your distributor first.. sounds like something along the lines of a bad Ignition control module or something distributor related.. was there any time in which the timing could have gotten offset during the swap? and does the CEL work?