Help, I have a 05 corvette and I have installed heads and cam package and procharger running 6psi boost, 62lbs injectors. Car runs good but at idle it wants to idle up and down 200 - 400 rpms but it is not consistant. Sometimes seems to idle fine. Can someone look at my file and offer some idea if its in my tune or if I should be looking for mechanicle issue. (vacumm leak, intake air leak, leaking injector, etc.) Thanks
I would pull 10 degrees of timing from the base idle spark table for 20 degrees of base idle advance and smooth out the base running airflow. 30 degrees of idle spark advance is pretty high. Also, your minimum running airflow drops to 0.365 at 600 rpms in park/neutral/reverse. Try raising those 0.365 at 600 rpm running airflow values to about 0.900 for park/neutral/reverse. You may have to tweak some other base running airflow values also once the timing is pulled back.
Reply With Quote