Engine in but no idle

Just got my 2012 xp900 engine back from Alba with a stage 2 build, got everything reassembled and bike wont run for more then 10 seconds. Engine light on, Code 102-4 and 105-3, searched around and found some harness issues, as far as I can tell no broken wires. If i unplug the sensor on the side of the throttle body it idles, not smooth but idles.