ok need help for some reason all the 02 lb7 went fine but the 03 take the dsp 5 programe and it works as you switch from 1-5 you have a very slight incress the dsp 5 programe im running is from nick at dieseltunner.com so i know its good works great on 02 lb7 it a tire roaster on 5 but on the 03 its just smokes a little more ever time you go up a notch but very slight incress in power the tunes were payed for so please help i heard it might be something in engine diagnostics , maf co904 somthing about limits thanks for looking