Diagnostic Connector

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09 Oct 2012 20:10 #11747 by wallyp
Diagnostic Connector was created by wallyp
We may be able to source some reasonably-priced 19-pin plugs for the diagnostic connector.

Anybody need any?

Wally Plumley
928 Specialists
www.928gt.com

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09 Oct 2012 21:30 #11749 by the flying scotsman
Can you source both ends Wally?

Im interested in the 'Porsche' end to make adapter cables for the older cars with the rectangular diag port.

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10 Oct 2012 16:21 #11754 by rluvsporsche
Replied by rluvsporsche on topic Diagnostic Connector
Pardon my ignorance. What is a 19-pin plug for the diagnostic connector?

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10 Oct 2012 23:10 #11766 by the flying scotsman
Porsche added diag software to the 88 MY and up. The 87/88 cars have a rectangular port near the LH and EZK computers although the 87 eproms do not have the diag software.

The 89 thru 95 cars were changed to have a 19 pin diag port near the LH drive passenger seat.

The eprom diag software is accessed through these ports with a special tool that became known as the 'hammer'. The Porsche hammer was superceeded by the JDS Spanner which in turn was upgraded to Theos diag system which is still availbale.

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11 Oct 2012 20:47 #11793 by wallyp
Replied by wallyp on topic Diagnostic Connector
No eBay APP ID défined in Kunena configurationAfter some discussion, David decided that it would be better to just let everyone who wants a connector buy their own from the supplier at minimum cost. The total cost is $8.95, including shipping.


Wally Plumley
928 Specialists
www.928gt.com

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18 Oct 2012 11:18 #11891 by emmanuelli
Replied by emmanuelli on topic Diagnostic Connector
ok, so once i have this plug, i where do i get the Dx tool to see whats going on in there? does the OC have one in their share/loan program?

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18 Oct 2012 12:10 #11892 by martinss
Replied by martinss on topic Diagnostic Connector

Porsche added diag software to the 88 MY and up. The 87/88 cars have a rectangular port near the LH and EZK computers ...


Thanks for the explanation Malcolm. Follow-on questions: What type pf plug fits the rectangular port of an '88 and can an OBD be used?

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18 Oct 2012 19:53 #11898 by the flying scotsman
your welcome Martin

I believe the rectangular port is a 12 pin device thats pictured in the WSM.....I'll look for it.



I understand the Porsche diag software cannot be communicated to with an OBD........recall the software was developed ~20 years ago now :)

Attached files [img]media/attachments/12244=1402-hammer.JPG[/img]

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19 Oct 2012 11:41 #11902 by wallyp
Replied by wallyp on topic Diagnostic Connector
Diagnostic results were disappointing. I attached the 19-pin adapter to the diagnostic connector on the '90 GT, and attached an OBD-II scanner. The scanner went thru all of the communication protocols, and gave the version of one of the protocols - but absolutely no other info. No codes, no data stream.

Perhaps some of our electronics experts might be able to help, but so far, it looks as if Porsche had no early implementation of any OBD standards.

Wally Plumley
928 Specialists
www.928gt.com

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