Doing the tear down for my build up and noticed that on my G35 blocks upper oil pan that their is a plugged port in the oil feed galley that goes to the heads. It sits on a 45deg angle of the pan behind the alternator/PS pump area. Is this where the factory oil pressure gauge sender goes on a Z? Thanks.

 

the oil pressure sending unit should be in the same location for the G and the Z..................down near the oil filter. The G has the sensor, but just doesn't have a gauge for you to view it.

 

The one by the filter is for the dash warning light for low oil pressure. Im pretty sure its just a low presure on/off switch. Im almost certain the Z has an additional sender for the factory pressure gauge.

 

i don't remember there being another sensor on my z when I put everything together. I think the only one is by the oil filter.