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

Thu Dec 3 04:58:55 PST 2009

Mike,

Thanks, I didn,t see the T in the pic the first time I saw it.

I am unfamiliar with vacuum lines, and one of mine in this assembly  
has cracked for whatever reason and I don't think my repair with zip  
ties is a very good one, so I am trying to find a better way and it  
looks like you may have found it.

Where did you source the plastic T, Is it a "special" one due to what  
I think is/are vacuum lines, correct?
The plastic vacuum line is a very small diameter, how did you connect  
the hard plastic vacuum lines that live under the rubber sheathing to  
the T?

Thanks.

-manny

On Dec 3, 2009, at 7:48 AM, Mike Sylvester wrote:

> In the 4th picture down you can see where I used a rubber elbow and
> plastic T.
>
>
> Mike
>
> www.urq20v.com
>
>> -------- Original Message --------
>> Subject: Re: [s-cars] 034 HO Coil w/ AAN ECU?
>> From: Manuel Sanchez <manuelsanchez at starpower.net>
>> Date: Wed, December 02, 2009 9:05 pm
>> To: "Mike Sylvester" <mike at urq20v.com>
>> Cc: s-car-list list <s-car-list at audifans.com>
>>
>>
>> Mike,
>>
>> Saw your pics on your site regarding the HO Coils.
>>
>> How did you replace the "stock metal T" that gave you the clearance
>> to mount the bracket and with what did you replace it with?
>>
>> FYI... The plug wire that Javad sells now are shorter in the plug
>> boot section, so now you can fit the coil cover over them, the
>> original type were longer and did not allow this (as you well know).
>>
>> Regards,
>>
>> -Manny
>>
>> 95.5 ur S6 Avant (mostly RS2'd)
>>
>>
>> On Dec 2, 2009, at 4:34 PM, Mike Sylvester wrote:
>>
>>> 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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>>>
>