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Old 04-07-2015, 10:14 AM
  #16  
LouZ
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Originally Posted by Michael D'Silva
hi
thanks for the reply...

I'm not 100% sure it's my ecu just yet.. reason I say, is that I used a generic cable and the durametric software to connect to my tip ecu and that's how I managed to pull the 21 code... but for some reason, the durametric (vers 5) wouldnt connect to me dme and I wanted to see if my engine ecu had any errors..
Tonight I was able to verify that there are no errors on my engine ecu using my friends scantool, but for some reason it wont connect to my tip.. in fact, the 3 or 4 times we have used his scantool, it has never been able to connect to my tip..

Can I ask where you found reference to the #21 error usually being related to an ecu fault? If it is, then I am OK with that.. as I can buy a second hand one (hopefully not also a dud) and all my problems will be fixed (till the next one)...
I'm trying to put 2 +2 together, you state that you can't connect up via the Scantool. Found the info in the Porsche Workshop manual Vol. 3 Tip Transmission diagnostic section. it's a large pdf and isn't cooperating with my software to allow me to extract segments. Perhaps some other Rennlister could point you to a site to download it.
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Old 04-07-2015, 10:27 PM
  #17  
hepkat63
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fault 21 refers to test point 14 - as below:


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Old 04-13-2015, 05:49 PM
  #18  
Michael D'Silva
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turns out my ecu was faulty...
I located a second hand one, plugged it in, and no errors and no more limp home mode.

Not sure why the original one failed...
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Old 04-13-2015, 08:41 PM
  #19  
JasonAndreas
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Did the purchase of your new control unit require a core exchange of your previous ?
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Old 04-13-2015, 08:44 PM
  #20  
Michael D'Silva
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No exchange on my part.... Just bought it outright...
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Old 04-17-2015, 03:07 PM
  #21  
mojorizing
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Michael,

Are you interested in selling your faulty ecu? If so, PM me.

Kevin
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