Air Flow Sensor ride hieght

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <199709030118.VAA10653@pear.epix.net> waves@epix.net writes:

> A visual adjustment of the air flow sensor position is very inaccurate.
> There are precise specs, down to the mm as to not nec. where the level of
> the sensor plate itself is, but rather how much play there is at the fuel
> plunger. I don't remember the specs, but yes in general, the plate should be
> just a bit lower than level. More importantly is that the plate is not off
> side to side. Pull up on the plunger and it should not have any resistance
> in the way of plate to cone contact.

There's usually a sticker on the plate.  It's 1.9mm + 1.1mm on the ur-quattro 
MB, but I don't know the Coupe value.  Play is difficult to feel unless you're 
experienced - it helps if the fuel system is pressurised.  A fine feeler gauge 
should pass around the plate without obstruction - the plate should really be 
lifted so that it's level with the start of the throat for this test.

-- 
 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club