560SEL Idle Question

[Solid Snake]

Hey guys,


So ever since I bought this car, it has had what most would call a high idle (900 in D, 1200 in P or N)

I never sourced the problem, until last week. My brake booster vacuum line was severed , and to get the OEM part I had to order one straight from Germany.

Now, its idling at about 900 in Park or Neutral, and ~720 in D.

I am under the impression this is still about 150-200 RPMs too high.

There isn't another vacuum leak (Believe me, I have scoured that engine bay ) but I'm sure after a good tune up and adjustment, I should have her runnin' right.

So, is this high? And if so, what exactly should I adjust to get her back to 'normal'?

I'm also under the impression I'll need a new ICU and or Module, because I cleaned that ICU like no other.


Thanks,


Carlen