I've tried everything and I can't seem to get the code to go away. I switched out the sensor already, and I've wired the red/yellow wire on the sensor straight to the ecu because I had this problem before and that's how I fixed it. But this time the code will not go away, does anyone have any ideas?

 

Take the ecu & install it into another vehicle or try another ecu to ensure the issue is not ecu related (which I doubt).