Also im confused as to why my blms were all over the place on the old computer and now theyre rock solid on a factory fuel map with the new pcm?? Like is the new one that much better? I also fried my o2 sensors with fuel trying to start it after the swap. I replaced my narrow band single wire with the three wire heated sensor. I do have headers. But i did also manage to tune it out on the old one by adjusting the ve table i was doing the (blm/128)*fuel map cell formula but i had to do it every cell individually. Thats why i upgraded for easier tuning and wide babd input. But now it doeant need it.

What im trying to ask i guess is this. Is the new pcm really just that much better or is it the o2 sensor upgrade with the headers thats more likely responsible?