camshaft

I took apart the VVT gear on my Corolla to see how it works. I made a video of the breakdown and explanation: Varying the valve timing on a camshaft will decrease emissions at lower engine RPM, and provide more power at higher RPM. Here’s a quick overview of the breakdown The engine head...

I have a 1996 Toyota Corolla that produced a check engine light this morning. OBD reader told me its a Camshaft Position Sensor. I am new to this field of automotive work and am unaware of what needs to be done. Is this sensor removable? Or is it my actual camshaft that needs work/replacing?