Thanks again for your patience and explanations. I really do appreciate it. I was actually thinking more along the lines of modifying the signal at the actual fuel injectors, rather than ECU inputs. The various inputs that can be tweaked on my vehicle (for the most part) I have already done.( i.e. ECT, IAT, MAF(both signal and load). If I can find a way to let the processor call for what it needs, but modify the ECU's output pulse rate sent to the injectors, I will be able to set my actual fuel delivery to whatever I desire. What are your thoughts (other than possible engine damage-which we BOTH know can and will occur if not properly instituted) on varying pulse width at the injectors in this manner?