Boost controller question

[fastfive0]

Ok Im switching from a bleeder style "turbo xs" boost controller to a hallman in car evolution ball and spring style boost controller. My question is will i need to change my current tune at all? I swapped them out and now my tune seems to be way off, AFR's are much richer and i have quite a bit of studdering since the replacement. Idea's??

 

[mike96]

sounds like either you do or did have a vacuum leak and or something got disconnected during your install and didn't get hooked back up. i would start with looking for stuff not plugged in all the way. did you have to remove your MAF sensor for any reason?

 

[wancsta]

Not the studdering again it's was REALLY humid out tonight the gm mas does'nt like that too much try again tommorrow.