Aeb T3T4 Part Throttle Stutter

[Tanzimur]

My a4 b5 fwd 1.8t t3 t04e 60 trim bt Aeb is finally done after many years. Has a 550cc tune with a 4 bar fpr by kompressed has all your required goodies. Car runs great pulls hard on 9psi. Just wastegate pressure for now till i get this part throttle hiccup fixed.

Wot and normal cruising car is great. Only upon letting off the gas to get right back in does it stutter. Thats it.

Pretty much feels like its running pig rich and dumping fuel. And the spark cant keep up. Afr related.

What do you guys think it can be?

[Tanzimur]

Well check engine light came on finally. Codes are

p1557 charge pressure cont. positive deviation. More then likly whys this ccame one is due to it being removed. i have the sensor just have to plug her in.

p1545 tbody malf. i have done numerous tbody alignments. i think its a bad tbody whats everyone elses input? how to test?