[BiturboS4] Re: piggyback ecu

California Fields cfields72 at hotmail.com
Thu Sep 11 16:14:26 EDT 2003

Ti, APR is working on (or maybe even has released) what they call "direct
port programming". It's like chipping your car except that you don't need to
physically mess with the ECU. Instead, you just plug into the VAG port and
send data to the ECU (kind of like flashing the ROM). This way, the dealer
will never know and the software can be changed easily.


<DIV>Carter Fields, San Francisco</DIV>
<DIV>2001.5, GIAC-X, Miltek 3" cat-back, Strat. shifter, Strat. DVs,
A-pillar boost gauge</DIV>

>From: Ti Kan <ti at amb.org>
>To: dbc112 at yahoo.com (daniel chisholm)
>CC: biturbos4 at audifans.com
>Subject: [BiturboS4] Re: piggyback ecu
>Date: Thu, 11 Sep 2003 09:19:46 -0700 (PDT)
>daniel chisholm writes:
> > Has anyone heard of the piggyback ecu? It would be very nice to have a
>plug in ECU through the Vag-Com port under the steering wheel.. a much
>cheaper solution to a new ecu and chip
>No, where have you heard of such a thing?
>The diagnostic port is only that... it only has a relatively low speed
>serial interface to the various modules, and does not have direct access
>to all the sensors and controls that the real ECU has.  Thus if there is
>such a thing as a "piggy back ecu" it is probably quite limited
>in what it could do.
>2003 A4 1.8T multitronic
>2001 S4 biturbo 6-sp
>1984 5000S turbo
>1980 4000 2.0 5-sp
>     ///  Ti Kan                Vorsprung durch Technik
>    ///   AMB Laboratories, Sunnyvale, CA. USA
>   ///    ti at amb.org
>  //////  http://www.amb.org/ti/
>BiturboS4 mailing list
>BiturboS4 at audifans.com

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