DirtE30 - 1990 BMW 325i

[Jake]

So the throttle cable is still clipped into place while this is happening? I had a similar issue when I borrowed Jake's E34 once. I snuck up on the throttle pedal in a way it didn't like and that plastic washer thingy popped out of its bracket and got stuck so my only available throttle position was like 80% open.

I recall you being slightly cross when you brought the car back... sorry about that. 

There is a guy who sells aluminum throttle/cruise cable bushings which is what I used to replace the E34's: https://store.garagistic.com/bmw-aluminu...e-bushings

Your problem sounds different though, I agree. Didn't you already replace the idle control thinger that has the swinging vane? That caused all sorts of similar bullshit on my E30.