This may help.
http://wiki.ross-tech.com/wiki/index.ph ... 004/008196
Hoggy.

 

Yeah, had a look at that initially, without idiot proof instructions, all beyond my ability.

 

Yeah, had a look at that initially, without idiot proof instructions, all beyond my ability.

Hi, Not sure where the Vac lines are on the MK2 but could be as simple as hose off or split.
Hoggy.

 

Do output test to see if motor is stucked or intake flap is already rounded.

 

So the garage put a scope in and nothing is stuck. The sensor is reading in a predictable fashion, but only between 2 and 3 volts, which they're unsure if is right.

Does anybody know the read out range of this sensor?

They're going to speculatively replace the sensor and solenoid as that's the "cheap" option. And also de coke the valves which are pretty clogged (80k on vpower only, plus one of those decoke fuel things at 50k).

If that doesn't so it, the vaccum system which again seems to be working fine, is part of the manifold doofa, and Audi only sell that as a whole, for a grand. Hopefully not that, especially as I have already replaced that a my cost to deal with leaky pcv system.

And the final thing they could do is program out the sensor which would lock the flaps open - anybody got any idea what that'll do to performance?

 

So went to have a butchers this morning, I had the rocker cover changed, not the manifold, but still, don't fancy changing the manifold for a small part - but that bit is all working fine at the moment, so no worry there.

Valves are a bit gunky, but I can't see why that'd impact the flaps as they're further away.

 

I never posted back. Replacing the solenoid and sensor sent the problem packing. Valves were degunked, haven't noticed any difference when driving it.