The original EDIS donor's car would have had an ECU but you won't be needing that as you'll be using a Megajolt to control the spark
Pin 2 is on the EDIS moudule plug .... Green wire if I remember correctly, some base model cars were not fitted with a tacho & pin 2 is blanked off.
All you need is the EDIS 4 & plug, coil pack, Megajolt, then you'll be good to go
