say i had a 2.0 DOHC efi working corectly and i put the coil from the 1.8CVH (carb) in it would cause any problem?

i mean would it cause the ECU relay not to activate when the ignition is on?

or if the rev counter (green wire, pin 11 on instrument cluster) wasn't on would that cause it?


OR

if the ignition module was goosed would that cause the realay not to switch? (Relay XI) the main ECU relay.