Field SFC Hyper R - Install Help

[90HF_Project]

Looking for some help with installing the Field SFC Hyper R in a 90' HF with a PM6 ECU. I had the unit wired in to the car and the car ran fine with the Main Power ON and the SFC OFF(MODE light GREEN and UP /DOWN Arrows GREEN). As soon as I turned the SFC ON the engine would bog down and the check engine light would come on. The ECU LED was blinking error code 3, a MAP sensor problem.
I confirmed the ECU terminal location(C14) of the MAP wire. I was able to get the RPMs and the Speed to display correctly with the MAP leads from the SFC disconnected. I reconnected the MAP leads from the SFC and the error condition returned. I used another MAP sensor to make sure that was not the problem.

If anyone knows anything about this, or any links to get help I would really appreciate it.