hello everyone, im new to this site, this is the second question i have posted, you guys were very helpful on the first one. i have a 1997 4.6 5 speed, i just completed the pi swap, i used the livernois cams, long tube headers, xpipe, the problem im having is that the check engine light comes on, i used my scan tool and i keep getting po430. the car runs very lean, wont idle most of the time, idles good when cold. when you stand behind the car the gas will burn your eyes, lol, can anyone tell me why i keep getting this code. do i need a tune? livernois told me with the cams i bought they didnt require a tune, well any help will be greatly appreciated. thanks!!!!!