sounds like it's a 2013 model issue? thinking back to my own experiments and attempts at inducing the lag, the only thing that comes to mind is a faulty brake switch (or one that isnt correctly adjusted). or a bug in the ECM software.
can you warm up the engine fully and then start driving? will it fault then?
ie. start the car and do not touch anything or any pedals til the engine is warmed up, idling at 650ish rpm, both radiator hoses hot etc.
This will rule out a buggy cold start software issue
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