oil metering pump question

Hello

I have 2004 model rx8 for service.

The diagnostic tool shows p1686 if I remember well who is mop issue.

I check the wire harness and all the wires is ok no short circuit no cut wires.

Also I measure the sensor with multimeter in ohm mode and I have no resistance even in 20 mohm scale.According to workshop manual I must measure around 400 ohm.

So i suppose that the fault component is the position sensor and no the mop hydraulic unit.

My question is ,can I replace only the sensor?

I didnt find it seperate as part so is compatible with other tps from other cars?

Have any one try to open this sensor with dremel and fix it?