Hey everyone, so around a month ago my dad picked up this car as he needed just a daily driver to get him from work to home, but recently we've encountered a issue which is causing the car to suffer a decent amount. So just cruising around is ok in the car, but when any sort of extensive power is applied, the turbo will cut out, and the vehicle will just go into limp mode. We have checked out the common issues of the EGR pipe having a crack, making sure the intercooler pipe which goes to the turbo is secured up with no holes, and of course looking at the EGR itself, and we didn't stumble across anything wrong with these components, but we may have missed something. I don't know a lot about cars, my dad used to be a mechanic but he couldn't find the issue. Any suggestions would be nice, as at this moment in time it's our only vehicle as our other car is currently being repaired. Almost forgot to mention that it's not a glow plug issue, and they have all been replaced very recently.

Any and all valid suggestions are welcome, thanks for reading. If you need anymore questions answered, then feel free to ask, ill answer to the best of my knowledge.