go to auto parts store and get a haynes repair manual,about 25.00.
AUTOZONE.COM
I own a 97 pickup with a ka24e and the vacuum diagram is right on the hood. But a local Nissan dealership should be able to print a copy of one from their service manual for you.
buy a haynes book
get a webber carb idid it runs so good
haynes repair book at auto parts store or get a Nissan truck service manual,check eBay .the dealer wants 75.00.
That info is on pages 18 and 19 of the EF(Engine fuel) & EC(Emission control)section of the 1987 Nissan Truck/Pathfinder service manual.
I need a vacuum diagram for a 1987 suzu pickup 2.5 lt engine
Johnsautoparts.com
You can find a one line vacuum diagram for 1997 Nissan 1.6 liter engine in the owner's manual. You can also find it at various auto stores.
There are about 20 vacuum lines. Do you mean a main intake manifold line?
Its on a placard under the hood. At least it is on my 97 truck. If not, go to autozone and look at the book.
Try Your Local Automotive Store or Buy A Book On That Vehicle And The Diagram Should Be In The Book < $14.00 -- $20.00 But Make Sure Be You Purchase It.