Connecting 'vacuum amplifier' causes hesitation off idle

[pishta]

F'n EGR....but its required.

I found that my EGR pintel was adjustable and I could extend the RPM before it opened, maybe getting by an off idle flat spot. If you just bypass it to ported vacuum, it will never close during WOT.

 

[slantsixdan]

The other nice thing about a new aftermarket EGR valve: it will come with a selection of orifice plates, so you can adjust the EGR volume to get the right balance between no hesitation and no ping.