Would it be possible to create a vehicle list

[markdh999]

We recently purchased a OBD-II-GPS/MEMS solution and we are running the Arduino Mega logger HD sketch.
We have tried it in a number of different vehicle models with only a small amount of success.
Seat Leon FR 2008 Diesel and Vauxhaull Corsa 2014 both worked.
Porsche Boxster S 2002, Suzuki Swift 2015 and Audi TT 2015 Diesel all failed to connect.
Citroen Berlingo 2012 had an extremely slow update and kept timing out.

I tried changing the protocol from AUTO to PROTO_ISO_9141_2 on the Porsche (which I believe is its native protocol) but still no joy.
However I notice the word PROTO so I assume it is a work in progress?

Is it possible that other users on this forum can contribute to a list of vehicles that they know to work with this product?
And also if you needed to modify the software in any way to get it to work. (Just knowing it needs modification is enough - I don't want the changes - I know you will have worked hard to figure it out!)

Thanks for any help given.

[stanley]

I don't think any vehicles after 2008 should not be able to connect. ISO 9141 support is incomplete and this is known. But this protocol is rarely used in newer vehicles.