560 not idleing properly

[CzarFC]

Okay, engine fires up, however it will not stay running. After it fires up it will run for about 3-5 seconds before it dies. If I give it a little throttle, it will stay running, however as I slowly back off on the throttle, the RPMs drop until they get to about 400rpm then it stops. After the engine quits I hear the fuel distributer quit about a half-second later.

For those who haven't read my posts before this is on a 1988 560 SEL on which I'm putting the finishing touches on a top-end rebuild.
*All the electrical wireing goes where its supposed to go, thats been visually verified 3 times by me.
*Most of the vacuum lines are attached properly, however there is a possibility I missed a couple.
*The engine will run, however it is rough until about 1200RPMs where it smooths out. Since the rebuild I've only taken it to 2000RPMs and have not driven it.
*The O2 sensor wires may have been damaged, but I cannot verify this.

Any ideas?

Thanks in advance!


Scott