1997 GT dpfe module

so i pulled my engine a put a new one in and i ended up with this dpfe module left over. i checked the one that is on the car and it has the same electrical plug connector, but the one thats plugged in doesnt have any hoses coming off of it, but the one i have left over does. is this an issue? the engine i bought is from a 98 is is possible theyre different? and will not installing the one with the hoses and finding the fittings they connect to cause me any issues? please help. thanks guys
 
Pictures would be nice. However, if asked to guess, the nipples have been broken off of one of the units.

The DPFE sensor works by reading the pressure difference between two points with a known restriction between. Be knowing the pressure difference, the EGR flow can be measured.

No DPFE means EGR releated DTC.