4k high idle

[Huw Powell]

> A young guy at work picked up a 4k that runs but not well. It idles at 2500  
> RPM unless he unplugs the FPR on the fuel distributor. I gave him 2 idle  
> stabilizer valves but no change.
> What are the usual suspects on these non turbo cars?

The secondary butterfly in the throttle body could be stuck partially 
open, btdt once upon a time.  Clean the outside a bit and pull off the 
black rubber "hose" to clean the inside, carb cleaner and a rag should 
work fine.

If it's not that, it might be a big bad air leak somewhere in the intake 
tract.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/