Turbo charger boost pressure sensor

What is your question?

Took the car in to have a check engine light diagnosed. Turbo charger boost sensor was showing as the reason. My normal mechanic does not work on turbo engines but he can order the part. All dealers are asking double the part amount so I can imagine the labor will be crazy. Does anyone know if this sensor is difficult to replace or any one locally in central Illinois they would trust to do the work?