Also does anyone know what this sensor is for and should I replace it.

Thank yo for the quick response but the part numbers just are not there. Although, on a side not I have found out what the sensor inky picture is for. It is a reverse indication sensonFalcoColumbarius wrote:Check out the web site and you will find pages like this:
http://www.delica.ca/forum/faq-and-downloads-23/
Falco.