I have a 2012 991.1 carrera s 7 speed manual with 41k miles on it and something unusual happened.
the first time it happens the car won't activate sport plus mode and when driving the power cuts of at 4500 rpm as it feels like it hits the rev limiter at 4500 rpm! with no massages on the dash at all, I turned the car off for 10 minutes and restarted it and it drove fine for the next week.
today when I drove the car the same thing happened and it allowed me to activate sport plus mode but, when shifting into 1st to get the car going it felt like its out of power and want to shut off, I turned the car off and restarted it and it drove fine !

has anyone had the same issue ?

advice me please

 

My WAG is there's an intermittent sensor issue that a power cycle corrects, at least for a while. The sensor acting up in some way puts the car in some kind of limp mode.

With a suitable OBD2 code reader you might find a pending error code which if present can point you to the sensor.

In some cases it is the crankshaft position sensor. In other cases the MAF is at fault.

Really I don't think there is anything you can do on your driveway to address this. Best advice is be sure you can reproduce the behavior and take it to the Porsche dealer. I suspect you are not the first to show up with this symptom and the techs (senior ones at least) will have encountered this before.