Injector being detected in the wrong position

Question

I have an 7683B injector installed on the back injector position but 7890A/5975C says its installed in the front. Is there a way for me to manually change this? It was correct before but I'm not sure what would have triggered the change without me physically moving the injector to the front. I have tried rebooting the GC and that has not helped. When I hit the back injector button on the keypad it says injector not installed. Openlab cds activity log says back injector deleted...front injector installed.

Lance Nelson · Answer

To move a 7683 injector between front and back positions If only one injector is installed on the GC, move it from the front to back inlet and reconfigure the GC as described below: 1) Press [Config][Front Injector] or [Config][Back Injector]. 2) Scroll to Front/Back tower. 3) Press [Off/No] to change the present tower position from INJ1 to INJ2 or from INJ2 to INJ1. If you press [Config], then scroll down, you will see that the only configurable injector is now in the other position. 4) Lift the injector and place it over the mounting post for the other inlet. 
 From an earlier version of 7890A Advanced User Guide

Injector being detected in the wrong position

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