Does anyone happen to know if Spark Control Module #16024701 is getting bypassed with carb setup or is always being used to send sign to ECM unit to start engine?
When you convert from Crossfire to Carb the Spark Control Module must be removed or its use just being ignored by vehicle electric system?
I will convert back to crossfire. I have already bought a very nice CFI engine harness to work with my cfi ecm.

 

the ESC module sends signal to ECM to control spark advance,will not be working if ECM not in working order.The ESC circuit is different from 1982-83,but easy to use one or the other. Good luck on the project and post any other questions

 

THE SPARK CONTROL MODULE IS OVER ECM OR SOMEWHERE ELSE?

 

on '82s it is under the dash kind of above the radio console-,on '83s it is underhood over by the master cylinder.

 

ill be removing a complete 1984 l83 corvette crossfire ecu, and injection soon, doing a carb swap. has 97k, car runs decent. interested in the efi setup?

 

Luckily I bought a cfi setup last year. I miss though a 1225550 ecm.
I will gladly buy that if you have it.