The reason for no aneroid was POLLUTION control. The turbo adds enough
air at all speeds to burn all the diesel fuel and thus no black smoke.
This engine was sold as an Eco-diesel, sacrificing power for cleaner
exhaust. The turbo maintains power at higher elevations without the
clouds of smoke that diesels can bellow otherwise.

Lots of people have put these in Vanagons, many change to the boost
aneroid pumps for more power.

Mark

Jim Felder wrote:
> I bought a 91 Jetta with the eco-diesel engine last week or so. One of
> the main reasons I bought it is because I already have all the tools
> and spares for the engine and some other stuff. But who has a good
> source for floor mats, body rubber etc. when that is needed? Is there
> a recommended newsgroup for it?
>
> What's the point in the TD injector pump not having an aneroid? Does
> that somehow help it get better mileage, or was it just cheaper to
> manufacture? The absence of an intercooler or any kind of boost
> indicator tells me that it's not a heavy-duty turbo rig on there.
>
> Love the car, by the way.
>
> Jim
>