Have a gdp solution egt kit for my ez lynk. Factory probe in back block off plate with extension down to first egt downpipe harness. Stationary 302f on egt 1-5. Have a tune installed witch is mapped for the egts to read. Plugged in several factory sensor in every harness slot and still Stationary 302f on egts 1-5. Did I do something wrong or unplug something somewhere that is causing no data from any egt even with the tune turning them on?