Re: V6 12V Mod Chip

[Elliott Potter <epotter@abraxis.com>]

Chris Newbold wrote:
> 
> Scott Sierakowski wrote:
> 
> > I'm looking for people that have chipped the 12V  V6.  Is it worth the
> > money to chip the V6?  I have a 90Q and want more power, without
> 
> Not to disappoint you, but "the" chip for the 12V V6 is a bit of a myth.
> One or two vendors have claimed to have them, including TAP and Superchips,
> I believe.
 
Superchips no longer advertises the 12v chip.  TAP advertises it, but if
you ever ask they say "oh, it won't work on your car."

> You'll probably find, however, that they aren't available "for your car."
> I believe the chips were only for Bosch ECUs, and every single 12V motor
> I've ever hear of someone owning actually has an Hitatchi ECU which cannot
> be chipped...
 
The 90 doesn't have the same ECU as the earlier Audis with the
mysterious Hitachi chip.  The V6 got a 16-bit ECU with 64K ROM, as
opposed to the 8-bit Hitachi.  I think that there was another ECU change
in mid-93 but I'm not sure.

> I wish it weren't true, but that seems to be the state of things. If some
> one else has better information, please pipe up!
 
Basically, no one wants to touch the V6 chip; from what I've heard, it's
exceptionally complicated and has lots of weird little exception cases
lying around that make it hard to alter...that coupled with the fact
that there's a minuscule (at best) market for the updated chip, means no
one messed with it.
--
Elliott

> -Chris
> 1993 90CS 5spd 73k miles