Well, picked up a '98 ls1 long block to replace the one I blew in November. Got around to finally putting some of it together and noticed this sensor. It was where the oil pressure sensor is located and it's a three prong connector and much shorter than a normal oil pressure sensor. Plug obviously didn't match up to my wiring harness so I swapped mine over. Longblock is supposedly from a '98 camaro. Anyone know if this is actually an oil pressure sending unit? And if so, why didn't GM keep/use this design?!?!? Would of made life so much easier for those breaking them during intake swaps.