http://www.diyautotune.com/cars/project ... _turbo.htm
It is a 1991 with stock 1.6L and BEGI S3 GT2560r turbo setup. We installed a DIYPNP on this car so we could document the process to help the community with their installations on 1990 to 1993 Miatas!!
The install article containing the pinout, specific details, and a basemap can be found here:
http://diyautotune.com/diypnp/apps/n76/ ... b6-mt.html
DIYAutotune.com Technical Support