What shares power with the turbo pressure sensor

[Colter]

Your ECM will send a 5v signal to that sensor and base its reading off the voltage going through the sensor, its return wire will be shared with oil and coolant temp (871 I think has three others as well). If its reading high voltage then the signal is shorted somewhere between ECM and sensor or your sensor is shorting.

Unplug the sensor, if the code changes a sensor is more likely, if not then you into wiring harness.