IS servo Motor exhaust valve eliminator really necessary?
I just put on Vance and Hines CS One slip on Exhausts on my 2010 Z1000. While putting it on, I removed the cables from servo motor from underneath the rider seat. But the servo motor is still on the bike. There is no light on when I fire up the engine. I heard people saying servo motor exhaust valve eliminator is necessary to trick the ECU when servo motor is taken off the bike.
My question is: Is servo motor exhaust valve eliminator needed even if the servo motor is on the bike while the cables are gone?
Thanks in advance.