Turbo not boosting while jaking.

[Mr Hagg]

Look on insite see what commanded and actual is at idle make sure they match..What I been finding is turbo is sticking when this happen. You see when jakeing on 3rd stage computer ramps up turbo to about 80% where as normal run is about 60% max.... so if its not moving vgt right you will not get any boost... If it was working fine before and not now tune id say is ok .... Also could have carbon come loose on intake and went through turbo and damaged it