Volvo: 1999 s70 volvo, turbo boost, volvo

Question
I HAVE 2 CODES .P0236 -- P0237  BOTH LEAD TO TURBO BOOST SENSOR.
I DO NOT WANT TO REPLACE SENSOR IF THAT IS NOT THE PROBLEM ,HOW DO I TROUBLE SHOOT TO BE SURE.

Answer
Rob,
The codes that you have supplied are what we call generic and not the manufactures codes. The generic codes do not give as much information. Take the car to a shop that knows the Volvo and have them read the code in the manufactures coding and see what they can tell you. There are times the code if cleared and driven do not return.