LOW OIL LEVEL Light on cold start!

Hi, i noticed than my LOW OIL LEVEL light come on when cold start, i turn the car off and start again and the Light come off. I've checked the oil level of engine and trans and are good. What can be? Maybe a damaged oil sensor?. There are no codes on the PCM... A weeks ago, a new oil pan gasket was installed (maybe the oil sensor on the pan gasket was damaged) and new tranny cooler.

Thanks,

Oil Bulb or something?

new sensor

Oil pump may be going out.....Oil light means low oil or Oil Pump Problems.

WHen the oil pan was out did the technician checked the oil pump? The light on means low oil pressure caused to the lack of oil or a bad oil pump