Originally Posted by KillerBMotorsport
No, not at all. Different symptom, different cause.
^ This. It's usually cause by corrosion/moisture. I can get worse or better depending on conditions and almost always cured by simply removing and re-installing the sensor.
The sensor is ON when it's as bright as when you first turn the key to the 'on' position before the engine starts. Anything less bright is cause by a poor ground between sensor and block.
That is it. The faint like is no where near the brightness of when the key is on "on".
But I will pick up a oil pressure gauge and go from there