Thanks for the responses guys but ive sorted it out. A black rubber glove I had over the intercooler pipe while I was working on it must of fallen in at some point and was blocking the intercooler
Yeah I reset the ecu and sprayed some wd40 into the solenoid but no joy, will have to check the sensor in the intercooler pipe.
It was working fine before the turbo was swapped.
I just replaced the turbo on my g6e with a brand new one, exact same turbo but now I'm experiencing major turbo lag. Will I need to get it tuned or could something else be the issue?