Download freely the Maxima 1989-1993 Service Manual extension. Two .pdf files to be used free - non commercial purposes.
Contents are expanded from the sucking cardomain.com - where it used to be since 2005... until 2012. Then I wrote an article of dirt cheap DIY performance ignition cables: these cardomain.com s-tanists crashed my years of work - with no explanation.
Go and download; lots of Nissan info, mainly Maxima 1993 VGE. Also some stuff on 5th gen.
Cannot say how long these files will be available, get it now - total 25Mb:
Nissan Tuneup Manual 1 PRELIMINARY .pdf
https://www.sendspace.com/file/p48062
Nissan Tuneup Manual 2 PRELIMINARY.pdf
https://www.sendspace.com/file/hxq8si