Hello, plugged in obd2 found two errors. Turbo boost sensor A low input and intake air temp high. Can somebody point me the exact location of turbo boost sensor and intake air temp sensor? I will look for any grounds or shorts. The vehicle is fairly old and ran 200,000 kms. 

I feel underpowered especially when vehicle is under load. Mileage seems reasonable at 15 kmpl but I am a very conserved driver.

The second pic attached is a graph between revs and turbo boost. Are they normal?

You can easily find such information in this site: Intake Air Temperature Sender Test

You can usually rely on code of the sensor you have your problem with. Like for example Intake Air Temperature Sensor is also known as G42.