Wrx Sti Hawkeye acceleration issues

[Turnerdv10]

Hi again Ive noticed lately if i floor the car it stutters forward and doesnt accelerate probably but if i gently accelerate it wont hold back or stutter any ideas please

[ShamzWrxStiTypeUk]

I also had this issue so had a 3 port boost solenoid fitted with the pipes all connected correctly and now car drives as it should no overboost as I suspect it felt like. 

[Turnerdv10]

I will take a look at this but yes it does seem to be over boosting

[Tidgy]

What mods does rhe car have? Has it been remapped?

[Turnerdv10]

Totally standard