Crank Sensor Replacement and Continued Issues

What happens here

The car starts sputtering and misfiring again, leading the crew to suspect a faulty crank sensor. The owner removes the old crank sensor, noting it was oily and suggesting a failing O-ring. After finding a new crank sensor from another enthusiast at the track, he installs it. However, the new sensor doesn't resolve the issue; the car still sputters under boost, causing it to lose communication with the crank sensor.

Goal: Diagnose and replace the faulty crank sensor.