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

[tony_fury]

Heiko:
You know more about these car's than I do.
I am by no means an expert.

I just look at the symptoms then try to analyze cause and effect.
In this case the cause was when the battery was disconnected for a long period of time.
The Indy check the codes and no codes were found.
Just trying to use some deductive reasoning for the side effects described.

You may be on to something with the ignition switch given his comment about the 0 to 1 to 2 procedure many times as well.

I just find it hard to believe the car was fine until the battery was disconnected for an extended time and now all these components may be at fault.

When I saw his comment about letting the car reach operating temperature it seem to run fine. It sounded to me like the ECU had time to learn the settings after being disconnected so long.

I'll shut up now.

Gorthaur:
Good luck with your diagnoses

T