i have done plenty of egr clean outs. also done the throttle body and intake manifold. i as like the other guy would only point and direct. but its only a 15 min job. im also in your area. im in kidderminster. message me if you want me to help. all you will need is a can of carb cleaner and a fair few rags to clean up the egr also an old tooth brush small head if possible. i have all the other tools.
i also have fiat ecu scan and know how to use it so if we throw an error when dc egr connector then i can reset the fault. i have never had an issue ever when doing the egr. i would recommend a full ecu reset after which will take 45 mins with battery dc but while we dc battery we can clean egr so no time wasted. then the procedure after we reconnect the battery will take just over half hour. it will reset your throttle and every other perimeter. the car will then re learn your driving style.