OBD-II UART Adapter V2.1 not workimng on Porsche Boxster

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AnkerBS
Posts: 1
Joined: Wed Aug 08, 2018 4:12 am

OBD-II UART Adapter V2.1 not workimng on Porsche Boxster

Postby AnkerBS » Wed Aug 08, 2018 4:28 am

The adapter will not connect with the Boxster. I have two, a 2002 and a 2004, and it has the same problem with both of them. I have attached a screen shot of running the test application. The strange thing is that I tested it on my Mercedes and then on the Boxsters, and the very first time I tried it it did connect, but after that nothing. What are my options?

Thanks/Anker

stanley
Site Admin
Posts: 686
Joined: Sat Mar 01, 2014 3:15 am

Re: OBD-II UART Adapter V2.1 not workimng on Porsche Boxster

Postby stanley » Sun Aug 12, 2018 9:49 pm

Your cars must use protocol like ISO9141-2 as they are made more than 15 years ago. Technically your can try adjusting timing values.

ATPTH <AA>

Function: set initializing pulse time for (in hex, range of 0~255ms)
Example: ATPTH 19 (set to 25ms)

ATPTA <BB>

Function: set negative pulse duration before first data (in hex, range of 0~255ms)
Example: ATPTA 32 (set to 50ms)


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