200 might be sick again, then again.....

[Kurt Deschler]

The potentiometer on the MC2 is only used by the MFI and can be ruled out. 
I have had symptoms like this before in my 200 in moist weather due to 
failing ca5Bp/wires and from bad gas.

 	-Kurt

> Message: 3
> Date: Wed, 1 Nov 2006 13:43:39 -0500
> From: "Mark R" <speedracer.mark at gmail.com>
> Subject: Re: 200 might be sick again, then again.....
> To: "Geraint Lloyd" <geraintlloyd_qc at yahoo.ca>
> Cc: quattro at audifans.com
> Message-ID:
> 	<56e3dd120611011043n68745528i338f38479bfcf029 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I can't help, but can you Americanize this e-mail?  =)
>
> This ONLY happen on a long trip?  That would point to a heat-soak issue.
> Sadly, it might not be easily fixable until next summer when the temps climb
> back up.  The throttle position sensor is easy to check for a dead spot, or
> non-linear output.  It's a simple potentiometer.  It would be helpful to get
> the codes.  After all, when the CEL light is illuminated, there IS a code
> stored at that moment.
>
> Good luck.  And speak American next time.  ;-)
>
> Mark
>
>
> On 11/1/06, Geraint Lloyd <geraintlloyd_qc at yahoo.ca> wrote:
>>
>> Hello all,
>>
>> drove from Montreal to Niagara Falls yesterday
>> a realtively uneventful trip.....
>> Still, here i a transcript of a conversation I had earlier today
>> -Mornin'
>> -Morgen
>> -how are you (pulled ECU codes)
>> -Ich bin sehr well zank you (blinked out code 4444)
>> -You sure about that? you were trying to tell me something yesterday.
>> (intermittent 'check engine light' that "just might" only be at part
>> throttle, which lasted for 500kms)
>> -Nein, Ich bin fine, and i really don't remember zat yesterday (blinked
>> out 4444 again just to be sure)
>> -Ignorant b at stard
>>
>> as ever the victim is an '89 10v 200TQA MCII
>>
>> So I have an intermittent check engine light and no codes stored in the
>> ecu.
>> it "seems" to be related to throttle position (1/3 depressed ish.... so
>> rheostat?) but could just be the engine condition/load related to that
>> position. I checked the fluids and filled up with shell 91octane in case it
>> was a knock issue.
>>
>> shell 91 seems to reduce the pinking in the golf compared to other brands,
>> can't think why but there we are..........(the golf was built for 98RON or
>> 4-Star Unleaded).
>>
>> The light seems to come on after 2hours plus of driving. the frequency
>> dropped after i stopped for fuel and a double whopper + cheese, then
>> came back 200kms later.
>>
>> like an @rse i left the full tool kit and 3 volumes of bentley at home,
>> since the wife insisted on bringing clothes of all things.......
>> honestly the cheek of it!
>>
>> any ideas guys?
>>
>> Geraint
>>
>>
>>
>>
>> _______________________________________________
>> quattro mailing list
>> quattro at audifans.com
>> http://www.audifans.com/mailman/listinfo/quattro
>> ---
>> Watch this space for ads :)
>>