DSM Link tuning problem?

[Boosted98RS]

Well my mods are :
Built 7 bolt
HKS 264's
Evo16g
660's
Supporting mods.

I'm trying to tune with DSM link and when I change the injector setting to 660s it like leans my idle to where you can't see it on the wideband almost anymore and the car tries to die. Should I just add fuel?

Also, when I tried to see any boost the car just shakes and tries to cutoff. Does it seem like I have some vacuum leaks or boost leaks somewhere? I'm not that good with DSM link and planned to go get it tuned but I'm just trying to break it in first?

 

[LiquidX]

You keep your fuel settings exactly where they are marked for your fuel pressure and injector size. You need to adjust your dead time to bring things back to normal.

If you don't know if you have any leaks then it sounds like you need to get that done. Any leaks post MAF will affect your tune and drive ability.