I'm missing something here. Trying to cure surging idle RPM's
Is there a quick and easy solution? Mostly an issue when in park/neutral
Idle control_04.efi99GMC_low idle_0003.tun
changed some things with success. This is a MAFless setup btw. I suspect trims were being activated. Also did a Full OS reload for the heck of it.
99GMC_low idle_0004.tunIdle control_04.efi
:)