Hi Mark,

        I hope you get some direction from some of the experienced folks on this list. 

Only time I remember something like this was when my AFM was disconnected and friend forgot to put the connector back on.  

Keep us posted, and I hope you had a safe trip home.

Eric Caron 

> On Aug 14, 2024, at 5:42 PM, Mark McCulley <mark@MARKMCCULLEY.COM> wrote:
> 
> Van started revving up above 2500 rpm after starting, happened a couple of times then stumbled and quit. Restart and same pattern occurs. 
> 
> I reseated all the connections in engine bay, still same symptom. Disconnecting the idle control unit removed a the idle surge and allows van to be drivable, though idle is too low. 
> 
> I’m a few hours from home, thinking it’s ok to drive home without the idle unit.
> 
> Any comments or suggestions?
> 
> -Mark
> 1987 syncro