[s-cars] 034 HO Coil w/ AAN ECU?

[Mike Sylvester]

By ignition chip, do you mean the eprom that gets replaced in an
upgrade?
I would find that very surprising that an aftermarket coil could cause
the ignition eprom to go bad.
That chip is not driving anything external to the ECU.
It just contains the map.

WRT to the 034 coil solution, I have had these for a few years.
You can find some installation photos on my site.
http://www.urq20v.com/My_other_cars/S6/S6_repair.htm

I also went with the 1.8 coils at first and replaced 2 in 2 weeks.
I now believe that the coil failures are due to bad plugs.

I had to have the HO coils replaced after about 10k miles.
It seemed like something corrosive leaked out of the coil into the
connector and melted them away.
It was bad on one and starting on another.  034 replaced them all.  It
has been another 40k without an issue.

I don't know if he has changed the plug wires that he ships, but the
ones I got, were too long to re-install the center part of the cover.
I have since reworked some 3B wires and machined the inside of my cover
so that it fits properly.

If you are going to use these on your 3B, the you can swap the ends from
the 034 wires onto yours so that they fit the coils.

All in all they are working for me, but I have to think there is a
cheaper solution out there now.

Mike

www.urq20v.com

> -------- Original Message --------
> Subject: Re: [s-cars] 034 HO Coil w/ AAN ECU?
> From: "Brandon Rogers" <brogers at terrix.com>
> Date: Wed, December 02, 2009 12:06 pm
> To: "'Manuel Sanchez'" <manuelsanchez at starpower.net>,
> <s-car-list at audifans.com>
> 
> 
> I don't know the details - but do know the failures I was told about do
> _not_ have to do with being "chipped" - but the way I understand it is some
> AAN ECUs are failing - and it is the ignition chip within the ECU - he
> _thinks_ it _might_ be due to aftermarket coil systems.  Again - just his
> theory.  That's why I'm curious about people's direct experience with this
> particular coil setup (034) - as I have one I plan to use...
>  
> So far people here seem to have had good experiences....
>  
> So to reiterate:
>  
> Facts:
> There have been ignition chip failures in some AAN ECUs
>  
> Theory:
> Might be due to aftermarket ignition (coils) - didn't say what kind - don't
> know if he even knows...
>  
> Brandon
> '84 urquattro 20Vt
> '01 S4
> 
> -----Original Message-----
> From: Manuel Sanchez [mailto:manuelsanchez at starpower.net] 
> Sent: Wednesday, December 02, 2009 6:26 AM
> To: s-car-list at audifans.com
> Cc: brogers at terrix.com
> Subject: [s-cars] 034 HO Coil w/ AAN ECU?
> 
> 
> Brandon,
> 
> I've had the 034 HO coils on my RS2'd car for a couple of years now as well.
> 
> I had some initial "teething" problems that in the end turned out to be a
> bad ignition wire (it had a knick in it). Once that was chased down it has
> been trouble free (knocks on wood).
> 
> My OE setup failed about 15,000 miles ago, so I obviously can't compare the
> longevity question with regard to the OE vs 034 systems.
> 
> I must admit however that in the dark days on trying to chase down what the
> problem was with the new system I told myself that I should have just bought
> the more expensive OE Coils and OE POS's, after all, they lasted 100,000
> miles.
> 
> Having said that. the 034 HO system is very simple to install, and the new
> ignition wire boots are of a different length that allows you to place the
> coil pack cover overtop them spark plug wells so you can keep the crud out.
> 
> 
> I am curious though about these ECU chip failures you write about. Can you
> expand a bit more on what the theory or evidence has been? What aftermarket
> systems have "caused" or been thought to cause the Chip failures? Why does
> this person surmise that the coils have caused an ECU problem.
> 
> Regards,
> 
> Manny
> 
> 95.5 ur S6 Avant (mostly RS2'd)
> 
> 
> On Dec 1, 2009, at 10:04 PM, s-car-list-request at audifans.com wrote:
> 
> 
> ------------------------------
> 
> 
> 
> 
> Message: 2
> 
> Date: Tue, 1 Dec 2009 14:53:55 -0700
> 
> From: "Brandon Rogers" <brogers at terrix.com>
> 
> Subject: [s-cars] 034 HO Coil w/ AAN ECU?
> 
> To: <s-car-list at audifans.com>
> 
> Message-ID: <636621FF56584C19A95437D476CAA475 at BCROGERS>
> 
> Content-Type: text/plain; charset="us-ascii"
> 
> 
> 
> 
> Guys-
> 
> Curious what people know about using the 034 HO Coils with the AAN ECU.  Are
> 
> many guys here using the 034 HO Coils?  (Or mostly 1.8T coils (I don't want
> 
> to do the 1.8T coils)).  Do you guys know of people having any issues?
> 
> Reason I ask is because I know somebody who is seeing a fair number is
> 
> ignition chip failures within the AAN ECUs and he thinks they MIGHT be
> 
> related to aftermarket ignition (coils).
> 
> 
> 
> 
> Any BTDT? 
> 
> 
> 
> 
> Brandon
> 
> '84 ur-quattro 20Vt - going COP
> 
> '01 S4
> 
> 
> 
> 
> 
> 
> 
> 
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