ust fitted a HKS ssqv
 

Ive got a wrx blob eye, i used to have a greddy bov on the car and everything was fine, i just fitted a HKS ssqv and after a small test drive im finding the idle erratic and stalling a couple of times with the car smelling very rich.

Am i needing to get the car mapped for the HKS bov? i didnt have any probs changing from OEM bov to the Greddy, is it cause the HKS bov is a diaphram type bov compaired to the Greddys spring type?

Any info would be great