Rough Idle - Cam timing?? 325es

[Chuck-Michigan-e30]

did it happen suddenly or has it gotten progressively worse?

Recent purchase of the car so I do not have a history with it. It had 1000 miles put on it in the last 8 years.

[MrBurgundy]

did it happen suddenly or has it gotten progressively worse?

[82eye]

possible bad icv if no vac leaks.

[Chuck-Michigan-e30]

Hello everyone,

I am stumped (rough idle)
1986 325es
85,000 miles
Perfect compression
New plugs
Smoke tested for vacuum leaks
Plug wires checked for ohm resistance (all the same)
Fresh gas
It runs smooth and strong when driven
New timing belt
premium rebuilt injectors
32 lbs fuel pressure

I am at a loss.
I am wondering if the timing belt might be off one tooth????

Thanks for any ideas

Chuck