If they both have the same engine.
There are two, they are bolted to the left side of the left head and the right side of the right head.
Behind the passanger side head light.
It is located on the center, top, rear of each cylinder head.
more than the miserable car is worth
The intake and exhaust manifolds, along with the timing belt will have to be removed to gain access to the head. Remove the head and replace the gasket. Torque the bolts down to the manufacturer specs and in the order Nissan suggests.
your gonna want a vg30dett v6 twin turbo dual over head cam
mass airflow sensor of head tip sensor could also be catalytic converter
The 1987 Nissan cylinder had bolt torque specification is 140 pounds. The cylinder head bolts should be torqued in 45 pound intervals.
maybe ablown head gasket
You can open your Nissan broken glovebox with a flat head screwdriver. Gently pry outward on the glovebox door. Begin prying outward just above the glovebox door latch.
On the 1988 sportster it is in the back of the head lamp.
I believe that this vehicle has an active recall on the fuel injection system, specifically the fuel pressure regulator. I don't remember the details but Nissan may repair this under the recall. You should check with them.EDIT: The 1988 Nissan 300ZX Turbo DOSE have an active recall on the fuel injectors, the problem affected a extremely limited number of cars. Nissan has an excellent quality repair service and will fix it without question.I changed the fuel regulator, fuel filter, and pcv valve and it is still doing the same exact thing as before. Im not sure but i think i might have a blown head gasket, im beginning to think they guy that looked at my car didnt really know anything.