Better Mileage Audi A6

[Tony Hoffman]

Definately second the CTS. They go bad fairly frequently on these cars. The
Thermostat is located such that the timing belt has to come off, so it's a
pretty invfolved job.

And, I can't really imagine the cats causing that milage, unless they are
severly plugged up. In which case, you would also have a power issue.

As Mark suggested, if you can get your hands on VAG-COM in your area that
should be a big help. You can even watch the flow rate of the air flow
meter.

Tony

On Thu, Aug 25, 2011 at 4:26 PM, Mark Rosenkrantz <speedracer.mark at gmail.com
> wrote:

> You'd have to reprogram the ECU for a cat delete, and the rear sensors
> (post cat) can be deleted.  The reason there are 4 sensors is to verify and
> optimize cat performance.  Obviously this is an illegal mod for a street
> car, but the chip tuners can accommodate.  Is the engine burning oil?
>  Vag-com can be used to watch the sensor inputs.  BTW, I'd put the coolant
> temp sensor and thermostat at the top of the list, as well as dirty or worn
> injector.  Techron is your easy friend there.
> Mark Rosenkrantz
> Typos sent from my BlackBerry.