Hi John,
A quick image of the ECU internals on here and most people will tell you what you have.
The case can be changed, so we need to see internals really. Although a small yellow CO screw will confirm a L1.

From there, everything you need to spec up a mail order cal can be found in this questionaire: (This is L8. there is a L1/6/P8 one too)

https://shop.motorsport-developments...-ecu-421-p.asp