Ignition Module and the Crank Sensor

[lotusman]

Long ago I read a post that Lotus modified the GM ignition module in the car. If you did not buy a factory module and coil set, about $450, then you would get a, "Engine Speed signal Missing" ,Code 41 and get a check engine light. I believe one of the wires from the module to the ECU was switched. Anyone have a diagram of the wire change so I can get rid of the check engine light?

Thank you,
Lotusman
'89 non-SE