How to make the orange engine light go off?

What is your question?

I had some work done recently on the fuel system . After repairing the problem the mechanic said the 2013 had a reset on the computer and he did not have one that new. Is this correct. I need to get the engine lite to turn off.

What makes this problem better or worse?

not a problem

How long has your 2013 Land Rover LR2 had this problem?

about a year