Manuals > USDM Cars > 1989-1990 240SX (KA24E) - Nissan 240SX Performance Tuning
It's a fake FSM but I use it every time. It's one of those ebay ones. Between that and the Chuki one and my chilton's manual I've found everything I need.
We did an epic search on NICO for the real one but it doesn't exist and the people that had it wouldn't scan it or send it to another member to scan...bastards.
Manuals > USDM Cars - Nissan 240SX Performance Tuning
^For lots of other 240 manuals (USDM and JDM).