after put in the P600 turbo my car can't make any boost ECU tune is not done ye,the Ktuner map show it will run -9 PSI to -0.3 PSI is this about the ECU or the install
i have no code on my car i will go to the shop and seeWhen I first threw in the p600 I got a p0046 not sure if you did as well but that was causing me not to make any boost. The wastegate flap was stuck close because I had tighten the nut too much. Follow this WG Calibration Guide. Custom tune is highly recommended. Another tell tell sign is that your not hitting the commanded position which you can look at in data logs.