Brimstone Brown
Well-Known Member
Mine has been doing this lately I'm not sure why but I'm looking into it today. I'll start by cleaning the iacv and throttle body. Also checking for vacuum leaks. I'll post my findings tonight.
I don't think it's really an issue Levin, it's an imbalance in vacuum. When you tap gas, vacuum decreases, then when it gets past point of neutral pressure, it increases, then ECU automatically adjusts it to neutral idle again. It's a normal occurrence I think. Any vacuum leaks or head obstruction like EGR or IACV issues could probably add to exacerbate this condition as well.