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Old September 28th 15, 07:01 AM posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
Ashton Crusher[_2_] Ashton Crusher[_2_] is offline
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First recorded activity by DIYBanter: Jul 2007
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Default EPA caught VW cheating - how does the car know it's being tested?

On Sun, 27 Sep 2015 16:48:22 -1000, dsi1 wrote:

On 9/26/2015 2:58 PM, Ashton Crusher wrote:
On Wed, 23 Sep 2015 18:42:47 +0000 (UTC), Winston_Smith
wrote:

On Wed, 23 Sep 2015 10:00:58 -0400, Steve W. wrote:

I would bet there will be a software "patch" that will
erase the different testing maps, the cars will then meet the original
EPA standards

I think the point is that the cars can only either meet the emissions
standards with reduced drivability, or, with the addition of a urea
system.

Either will be expensive.


What I'd like to find out someday is what the actual difference "on
the road" is in drivablity between the cars in "cheat" mode versus
when they run with all the emissions turned on like they are supposed
to. It would be funny if there really wasn't very much difference and
they did this just to get 31.9 mpg instead of 31.2 mpg and 0-60 of
12.0 seconds rather then 12.3.


My guess is that VW will use a software update rather than spend
thousands on a hardware fix. I think the update should come with a
hundred dollar check and a 2L bottle of Coke - diet or regular as a
jester of goodwill.

OTOH, my guess is that a lot of folks will just ignore any fix, if they
can avoid it. The big question is will they be compelled by the state or
feds to do this or will this be be treated as just another recall.



A software fix would be OK if it doesn't wind up overloading the
filter/particle trap every 30 days requiring it to be serviced.