[s-cars] Misfire Diagnostic Help

[Mike Claire]

Sorry for digging up this old post, but Tom says we can run Ross Tech
software on our older cars for nearly nothing?  I need to know more.

Tom, you said "you can buy one of those cheap cables on ebay and the 2X2
adapter available there also."  Here's a couple of eBay listings.  Am I
looking at the right stuff?

2x2 adapter
http://www.ebay.com/itm/Audi-2x2-OBDI-OBD2-VAG-COM-Diagnostic-Adapter-USB-Interface-/280806767500?pt=Motors_Automotive_Tools&vxp=mtr&hash=item4161633b8c
(pretty sure I got this one right).

USB to ODB2 adapter
http://www.ebay.com/itm/USB-OBDII-KKL-409-1-OBD2-VAG-COM-Car-Scan-Cable-Tool-/160714910434?pt=Motors_Automotive_Tools&vxp=mtr&hash=item256b5aeae2
IS THIS "one of those cheap cables"?



Mike
'93 S4



On Mon, Dec 12, 2011 at 6:50 PM, Tom Green <trgreen at comcast.net> wrote:

> I don't know that I can point you directly at a solution, Chris, but
> perhaps you will stumble on it.  You probably know about Scott Mockery's
> business web site <http://www.sjmautotechnik.**com/<http://www.sjmautotechnik.com/>>
> since it is the most common source for learning blink codes.  If not, shame
> on you, go there now.  Anytime you read codes, clear them after recording
> them.  You did not mention the CEL or MIL  as Audi names it.  You should
> run the output tests to check that the injector functions electrically.
>  Your post reads like you are doing most of your own maintenance.  As Wyley
> suggested, clean the MAF connector plug and see that the MAF and air intake
> are clean also.  Deoxit from Radio Shack or online at Caig Labs is a good
> electrical cleaner/enhancer and cheaper than Stabilant 22.  Swab the
> injector connectors also with some of those electronic store swabs with the
> little ends.
>
> It would probably not be a waste of money to have the injectors
> cleaned/tested by one of the well-known shops.  <http://www.rceng.com/>
>   <http://www.mrinjector.us/> , or  <http://**fuelinjectorconnection.com/*
> *shop/ <http://fuelinjectorconnection.com/shop/>>    come to mind, but a
> local shop could work.    It would be nice to know the fuel pressure, but
> maybe not essential  yet.
>
> Since you are still blinking after 7 years or more with the 200/20v, you
> must not need this information often.  You are missing out on some
> information stored by the fault code that you simply cannot read with the
> blink code.  The VAG-COM software is available free in the Lite version
> that works very well with these cars.  All you need is a windows laptop
> running windows XP maybe (you don't want to be too new, I don't think, but
> the ross-tech.com web site has details on that, I believe)  Then, you can
> buy one of those cheap cables on ebay and the 2X2 adapter available there
> also.  These will run the lite version for free or registered for $99.
>  Either is fine, but will make diagnosis so much easier, and reset your
> service codes as well.
>
> Wylie mentioned quattroworld.com UrS4/6 forums for help and a great FAQ
> also.  There are several posters in CT on that forum also-some in-person
> help beats this long distance stuff every time.  Someone local might just
> have a few spare parts to help diagnosis along as well.
>
>
> Tom '95 S6
>         '95.5 S6 avant
> Knoxville, TN
>
>
> On Sunday December 11, 2011, at 6:42 PM,  Chris Hemberger <
> cehemberger at sbcglobal.net> wrote:
>
>  Hi Folks - have owned my S6 Avant for ~7 yrs & ck the site from time to
>> time;?have never posted but the time has come..? My car?w/ ~160k has
>> developed a
>> misfire/rough running condition that I'm looking for some assistance in
>> troubleshooting. Car is stock other than a Stage 1 modded-ECU (MTM as I
>> recall)
>> & has had the Apikol coil-conversion for 3yrs; I'm getting a '4411' code
>> indicating a problem w/ the #1 injector. Swapped coils around (and even
>> tried a
>> new one..), pulled the injector connector and the condition worsens which
>> would
>> indicate the injector is functional to some degree?- which leads me to my
>> question: do the injectors experience 'partial' failure which might
>> explain my
>> situation??Selectively disabling each injector on each of?the remaining
>> cylinders?results in degraded operation. Have run out of diagnostic ideas
>> &
>> thought I'd come to the experts - any suggestions/questions welcomed!
>> Thanks,
>> Chris Hemberger
>> Amston, CT
>> '91 200q Avant
>> '95.5 S6 Avant
>>
>
>
>
>
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