12v pressure sensor ploblem

Thanks all gona take some pictures of the sensor later on today
The sensor is already mounted on its own circuit board with a voltage regulated on it and a chip can't work out the chip number thou as it's very small.
And the sensor it's self I can't get any numbers or details of it as it's mounted on the underside of the circuit board.
Gonna try my best to get you all as much detail as I possibly can do thanks.
Jay