Post by
Nismo_Freak »
https://forums.nicoclub.com/nismo-freak-u248.html
Thu Mar 04, 2004 10:02 pm
The 89 should have a program called CONSULT on it, so it should be a OBD 1 car.
Rather than investing in the diagnostic tool (which will require Nissan model specific software BTW) I'd spend the money on a FSM (Factory Service Manual), this outlines the code testing procedure for pulling diagnostic codes out of the ECU.
It then will have a chart outlining what each code means, and an explination on how it's triggered.
I would not suggest converting to OBDII... for several reasons, for tuning purposes OBDI is easier to work around. OBDII debuted on the 96 240SX w/ KA24DE, different engine, and totally different wiring/sensors than any of the previous years. A conversion wouldn't be impossible however it would be rediculously hard for such a small benefit.