986 S problem at idle, engine won't rev and shakes, battery disconnected

[Meir]

Originally Posted by Gorthaur

Hi Meir and thanks for asking.

Unfortunately, I've not checked the cluster yet, I'm going to work on it on sunday.

I'll surely let you all know.

I know it would sound like a weird coincidence, but what about bad fuel? A few days before the cluster job I put 30 liters in...

WOW!
that changes the whole picture.
based on your sound clip, it could defiantly be the cause.
start with checking the cluster (easiest step).
if you still have a problem replace the fuel, and fuel filter.
this way or the other, i hope its one of the two. (because it a cheap fix ).
good luck my friend.