Re: New Audi A6 2.7T 6 speed in the garage

[Orin Eman <orin@wolfenet.com>]

> > When I used to do instrumentation and electronic consulting for Toyota
> > Racing Development, I heard plenty of (old wives?) tales about people
> > that decided to cut off fuel when the engine was braking and paid for it
> > with burned pistons.

> Happens on the MB engine.  Part of the high output enrichment comes from
> a fuel frequency valve input.  Close the throttle at full chat and the
> engine goes lean _very_ suddenly.  If the ECU is badly chipped (voltage

The MC also has a decel valve which bypasses the air metering plate
allowing it to drop all the way.

Later MCs also have a dashpot on the throttle which stops
the throttle slamming shut and may well prevent the rapid leaning.

Orin.