ltc

Yes, as soon as a PCNA rep detects it; which may or may not happen depending on the dealer.

Gert at www.carnewal.com does:
http://www.carnewal-europe.com/cpx_p55047.htm

and you can also get it from Sunset Imports (cost + 15%):
http://www.sunsetimports.com/go/pinqry/

bancu

It can be like pulling teeth to get _some_ dealers to do fixes on the Cayenne that are documented by Porsche. In the early days, I had to have PCNA service reps my truck in my quest to get some issues recognized as warranty ones. If it takes that much effort to get warranty work done without any third party involvement, I'm betting that it's just going to be worse when a dealer or Porsche figures out that the ECU has been flashed.

On top of the above, this just doesn't seem like it's good for trouble shooting. Lets say I'm experiencing something as common these days to the Cayenne as uneven idling and low power at low RPM. Depending on your dealer it could take several visits to get this issue completely address. Following your 'changing the chip back' approach would mean radically changing parameters that could relate to the issue and interfere with trouble shooting the problem several times.

bancu

Maybe your approach is sound for out of warranty vehicles but for in warranty ones...

Between the TSBs and other issues, a Cayenne is going to go in for warranty work at least once a year. It's probably even safe to say, that like most new vehicles, an owner will be visiting the dealer two times a year even if nothing 'major' goes wrong to get out any manufacturing kinks.

bancu

We're not talking about a sports car. Searching past posts will give you an idea that the Cayenne does a good job eating brakes when pushed in daily driving. Just like in-class performance SUVs this isn't unexpected given it's weight, propensity to be driven in bad weather and PSM. This should be more of an issue for folks tracking the Cayenne as Tso is talking about doing. I'm sure this is one reason why Porsche upgrades the brakes when they increase the power to the level of their Power Kit or Turbo S.

There are even folks that push their Cayenne's all the time who contend that the bigger 'power kit' brakes should have been standard on the Cayenne Turbo.

bancu

It could be the Halloween proximity but...this is just a spooky statement. Are you saying that you put this software into your own or customers $90kish vehicles without doing (or for that matter seeing) a before and after dyno report?

The real issue with the Cayenne Turbo isn't power. It's control and the safety it provides. Adding power to a Cayenne Turbo without adding control is just more wasted power. For anyone doing performance add on marketing research...that's the major reason I haven't 'chipped' or popped for Porsche's Power Kit on my Cayenne.

For those of us that can't/don't drive all-out, all the time, the primary issue is the mapping of the transmission control unit (TCU) and how _it_ applies the power we've got.

You can prove TCU centric nature of this to yourself when you drive a Cayenne that's just off the boat or has just had it's TCU swapped out. There is a world of difference in responsiveness to throttle inputs between these 'fresh' vehicles and one that has adapted itself to around town driving.

I see the TCU issue as a great Porsche 'bait-switch'. The Cayenne Turbos I test drove and the one I bought and drove for the first week or so isn't the one I'm driving today.