My Volvo (2.5T 2008 MK3) has started to have an issue, where it quite every day seems to have gotten more boost than normal (you feel the boost), and some other day it jerks. When it starts to jerk (in the middle of driving with fixed speed), then if I release gas pedal and press pedal again the problem normally disappears. I have gotten codes only once, even that these above problems are present nearly every drive:

• P0237 Powertrain - Turbo/Super Charger Boost sensor "A" Circuit Low
• P061D Powertrain

Please can you help me locate the Turbo boost sensor,its hard to find information about the location:

 

The turbo boost sensor should be located on the right side of the intercooler.