Thanks Russell, I found the sensor in the workshop manual for my car.
Just to update the thread:
I found this video which helped me diagnose the issue -
https://youtu.be/YZWvEakfElg?t=778
On the weekend I removed the sensor and although the sensor didn't seem stuck or sticking I pushed it in and out a few times to ensure it was freed up. Gave it a bit of clean and then reinstalled it.
Cleared the code and its been 3 days of driving and the code\engine light hasn't returned.