As long as you can tolerate excessivly rich running. A lot of people blame this on the JWT ECU but in reality, they did not request the AIV delete idle program. Mike --- "Raymond A. Kawski" <sr20de@epix.net> wrote: > So then for those of us who have removed the AIV and > don't have > a JWT ECU we are running a richer mix but only at > idle and > deceleration. So not a big deal?