If it was yust that easy...
Maf readings go crazy and engine is weted by fuel, no TVUB can help when MAF read(in spikes) 40-50 g/s at 1000 rpm and TB is at 2-3%
That's because you have hardware issues with intake.
Apart from the really obvious (boost/vac leak).
Pick one of these:
1. You are completely retarded and are venting bypass to atmosphere, and making pikachu face. "Why it doesn't work???"
2. Your bypass does not open because you removed N249 and friends and it has a way too stiff spring.
3. Your bypass and it's connections are nowhere near big enough for the turbo size you are running.
4. You don't have decent straight pipe before/after MAF.
5. You put the bypass outlet at a 90 degree angle close to the MAF instead of putting it close to the turbo and angling it into the turbo inlet.
Yes, it's THAT simple. Do shit right and this problem does not exist.
The only time I had issues was when the flywheel was like half the original mass, in which case you have to adjust SAWE to have a higher hysteresis for enabling injection, and boom problem solved.