A little story for you 2.8 folks.. Everyone else, stay out!!! ;-P

**Kris Hansen** · 05-28-2004, 04:42 AM

About 2 years ago, on the A4 forum, someone posted that his dealer tech told him that if you recode your A4 2.8 ECU to think it's in an A6, it would 'unlock' the mystery 10 hp that the A6 has over the A4. Well, since I had a VAG com, I thought, what the hell, I'll try it. I noticed a change right away, but it was not what I had expected. The power delivery became VERY flat, and less exciting. (sound familiar?) When I first drove my A6, I was very disappointed in the power, compared to the A4 it was very flat and not exciting. full throttle felt like 1/2 throttle in the A4. All this time I wrote it off as the difference between the AHA ant ATQ engines.

This morning, I thought, hey, why not code the A6 to think its and A4, and see what happens. Well, immediately I felt that the engine felt more 'lively', and pushing the throttle seemed to have more of an effect than it did before. It's hard to say if just that code change did it, but I really liked the way it felt this morning, I'm going to keep it that way.

To make this change, you need a VAG COM. Go into engine, select 'recode'. change the last digit of the soft code from a 2 to a 1. the key needs to be on, the engine NOT running.

Naturally, I take no responsibility if you decide to do this, and it has adverse effects. USE AT OWN WILL.

saabSean · 05-28-2004, 04:47 AM

We need another Boston GTG. I'm willing to give this a try... you know, for science! ;-)

Grapeking · 05-28-2004, 04:49 AM

usual wiaver/disclaimer for in triplicate, etc.... ;-)

**Kris Hansen** · 05-28-2004, 05:07 AM

It felt like it wanted to rev harder.. I think the big differences would be cam timing, and the intake manifold change over point..

Jmacs4.2 · 05-28-2004, 05:26 AM

Grapeking · 05-28-2004, 05:49 AM

rdynamix · 05-28-2004, 05:56 AM

DUBITUP · 05-28-2004, 06:00 AM

where in the rpm band do you see the "lively-ness"
my A6 feels pretty flat as you described through out the entire rpm range, sort of like it's getting strangled and can not breathe

RobertV · 05-28-2004, 06:00 AM

**Kris Hansen** · 05-28-2004, 06:06 AM

It's more lively everywhere. it's as if they detuned the A6 for the grannies..

05-28-2004, 04:42 AM	#1
Kris Hansen Chief of Goat control Account #: 20 Join Date: Oct 2000 Posts: 66,547,960	A little story for you 2.8 folks.. Everyone else, stay out!!! ;-P About 2 years ago, on the A4 forum, someone posted that his dealer tech told him that if you recode your A4 2.8 ECU to think it's in an A6, it would 'unlock' the mystery 10 hp that the A6 has over the A4. Well, since I had a VAG com, I thought, what the hell, I'll try it. I noticed a change right away, but it was not what I had expected. The power delivery became VERY flat, and less exciting. (sound familiar?) When I first drove my A6, I was very disappointed in the power, compared to the A4 it was very flat and not exciting. full throttle felt like 1/2 throttle in the A4. All this time I wrote it off as the difference between the AHA ant ATQ engines. This morning, I thought, hey, why not code the A6 to think its and A4, and see what happens. Well, immediately I felt that the engine felt more 'lively', and pushing the throttle seemed to have more of an effect than it did before. It's hard to say if just that code change did it, but I really liked the way it felt this morning, I'm going to keep it that way. To make this change, you need a VAG COM. Go into engine, select 'recode'. change the last digit of the soft code from a 2 to a 1. the key needs to be on, the engine NOT running. Naturally, I take no responsibility if you decide to do this, and it has adverse effects. USE AT OWN WILL.

05-28-2004, 04:47 AM	#2
saabSean Member Account #: 8108 Join Date: Jul 2000 Posts: 4,434	GRAPEKING!!! We need another Boston GTG. I'm willing to give this a try... you know, for science! ;-) __________________ AudiWorld \|\| 1999 A6 2.8q \| 1992 100CS \| AudiWorld Photo Gallery Links \|\| Stoney's FAQ \| CycleForums European Sportbikes Forum Tech Articles \|\| Instrument Cluster Replacement \| Suction Pump Replacement Other \|\| boompa.com/audiSean FOR SALE: MOVEN SP-10 18X8.5 FORGED WHEELS, $500 for 5

05-28-2004, 04:49 AM	#3
Grapeking AudiWorld Super User Account #: 18685 Join Date: Apr 2001 Posts: 8,877	well if you are willing to be "guinea pig" I'm up for the GTG! Of course you'll have to sign the usual wiaver/disclaimer for in triplicate, etc.... ;-)

05-28-2004, 05:07 AM	#4
Kris Hansen Chief of Goat control Account #: 20 Join Date: Oct 2000 Posts: 66,547,960	It really seemed to make a big difference on my car.. It felt like it wanted to rev harder.. I think the big differences would be cam timing, and the intake manifold change over point..

05-28-2004, 05:26 AM	#5
Jmacs4.2 Member Account #: 50250 Join Date: Jan 2003 Posts: 1,481	Lol!!! __________________

05-28-2004, 05:49 AM	#6
Grapeking AudiWorld Super User Account #: 18685 Join Date: Apr 2001 Posts: 8,877	easy enought to do, so if Sean is up for it I'll do the recode for him.

05-28-2004, 05:56 AM	#7
rdynamix Junior Member Account #: 22393 Join Date: Jul 2001 Posts: 1,223	I could not stay away... Can you tell me the recode to make the 4.2 feel like the V8 S4? :o) __________________ 558HP, 524ft.lb, 6WD, unlimited fun

05-28-2004, 06:00 AM	#8
DUBITUP Senior Member Account #: 53850 Join Date: Apr 2003 Posts: 7,649	Please keep us updated - sounds good so far (m) where in the rpm band do you see the "lively-ness" my A6 feels pretty flat as you described through out the entire rpm range, sort of like it's getting strangled and can not breathe __________________ SIG STARTS HERE Waste-n bandwidth on AW since: 2003-04-01 11:51:27 1999.5 A4 1.8TQM w/2 or three mods 1999 A6 2.8Q, Tip

05-28-2004, 06:00 AM	#9
RobertV Junior Member Account #: 52500 Join Date: Mar 2003 Posts: 703	Sure, buy a S6 :) __________________ REV 06 Magnum SRT8: Trinity 06 Sequoia AKA: The School Bus

05-28-2004, 06:06 AM	#10
Kris Hansen Chief of Goat control Account #: 20 Join Date: Oct 2000 Posts: 66,547,960	Yeah, that's exactly the way I described my car when I first drove it... It's more lively everywhere. it's as if they detuned the A6 for the grannies..

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