hi, i was also getting the PO237 code. I replaced the boost pressure sensor and it did not go away. I tested the harness with a test light and the car off. The only wire that goes to ground is the white one and I think it is supposed to do that. Any suggestions?

__________________
This post was auto-generated based upon a question asked on our tech article page here: MINI Cooper R56 Turbocharged Engine Pressure Sensor Replacement (2007-2011) | Pelican Parts DIY Maintenance Article

I don;t know what a test light will do. The actual circuit voltage is needed for testing, using a DVOM.

- Nick