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Rennlist Member
Joined: Jul 2012
Posts: 7,928
Likes: 3,143
From: US
You might drop Harry from HarrysLapTimer an email or drop in on his product forums... I don't know if you've seen his iPhone app, but it is a super cool track timer/video capture system and also reads OBD PID info for overlay on the videos...
On his forums there was discussion about getting additional Porsche specific PID info, what data was available in the datastream, etc. He might be willing to share what he learned for a non-competing product.
On his forums there was discussion about getting additional Porsche specific PID info, what data was available in the datastream, etc. He might be willing to share what he learned for a non-competing product.
Thread Starter
Racer
Joined: Aug 2011
Posts: 349
Likes: 5
I'm an Android Software Engineer with Garmin. Although I did not work on the Garmin Mechanic app, I could probably track down the electrical engineers that worked with the OBDII spec, and using my vehicle, see if we could find where in the stream, the info for the overrevs, etc. are. Were you thinking about writing an app from scratch? Perhaps I could talk w/ some folks to see if some new features could be added to the app (it's been over a year since the last update). Kicker is, the bluetooth protocol, for communicating the data from the Bluetooth device, to the Android device, is proprietary, so that means purchasing Garmin's Bluetooth OBDII dongle. But hey, it could be a win/win for both parties.
The views expressed herein are my own and do not necessarily represent the views of Garmin International or any other individual.
The views expressed herein are my own and do not necessarily represent the views of Garmin International or any other individual.
I think I've got mis-fires worked out (mode 6 data.) Still looking for over-revs and airbag light.
Racer
Joined: Sep 2008
Posts: 390
Likes: 41
From: Overland Park/Kansas City
On 1996 and later vehicles, you can tell which protocol is used by examining the OBD II connector:
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
Nordschleife Master
Joined: May 2005
Posts: 7,326
Likes: 77
On 1996 and later vehicles, you can tell which protocol is used by examining the OBD II connector:
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
I think LordVicious is looking for the PID and formula definitions specific to Porshce similar to this link for Prius http://priuschat.com/threads/gen2-pr...ormulas.95370/
Once we build this spreadsheet, Torque and EngineLink could just import the spreadsheet.
Thread Starter
Racer
Joined: Aug 2011
Posts: 349
Likes: 5
That's exactly right Ahsai. Unfortunately it looks like the software cannot deal with mode 6 yet. The Prius guys were kind enough to provide much of the electrical system information via mode 21 which is non-standard but works exactly like mode 1/2 (given correct ECU header offsets etc.) The Porsche guys have not been so, uhm, I'll use the word "industrious."
Nordschleife Master
Joined: May 2005
Posts: 7,326
Likes: 77
On 1996 and later vehicles, you can tell which protocol is used by examining the OBD II connector:
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.
source: http://www.obdii.com/connector.html
Can someone confirm 996 is using protocol ISO 9141-2 ?
