i get in my car at any given point of the day and drive it around town doing different things, after a bit when I stop at a light my check guages light will flash continusly, when the light turns green, i proceed the check gauges light goes out. Now say i drive to the mall, put it in park the check guages light starts to flash, i looked at the gauges and the oil needle is on the other side of the the little stop pin at 0 pressure . what would cause this to happen.