Should I try again & physically remove the OBD2 mx bt, then reattach it b4 I boot up HLT/ To make sure the OBDLink app is "fully" disconnected?

gplracerx wrote:After killing the OBDLink app, did you disconnect the dongle from the car and plug it back in?

No I left it plugged in, Just exited the app on my phone.

SAE J1850 VPW (10.4 Kbaud) is the protocol from obd2 mx bt.

I set HLT to that as requested.

Would not connect

I sent a log.

Please help.

Please forget about the Dual for now, it is not related to the OBD issue. The protocols discussed are car bus protocols - again, this is not related to GPS / the Dual device. To read out your car's protocol using the OBDLink tool, connect the dongle to your car and run it. Connect your smartphone t...

What protocol does the Dual 160 run on? The protocols you list. SAE, ISO and CAN, are for communication with the vehicle, not the phone. The XGPS160 uses Bluetooth, which doesn't have alternate communication protocols, as far as I know. I would suggest CAN as a first try if you want to try somethig...

HLT seems to have the same or similar list of protocols, so I don't know which one to pick, the obd2 software & hlt are both automatic now. In a few days I will need to return the scantool device to Amazon as it's not much good unless it connects to hlt. What protocol does the Dual 160 run on? :)

The Scantool obd2 helper on the forum suggested setting protocols the same. The choices I have on the scantool are automatic, 3 sae, 7 iso, 2 user can, He did not say which one to pick, it's (obd2) on automatic now. He did not seem to know that protocol was under communications on his menu, he thoug...

Thanks Harry. For log 1, there is zero BT in a 2004 z06, the stereo was off and it's a very simple basic stereo, it does not even have a mini jack for an ipod & no satellite radio, all wiring is stock, the 2004 z06 was built to be a decent track car minimum luxury. Not sure what you mean by over...

Per your request I have sent by email two log files regarding the scantool obd2 mx bt not connecting to hlt. The first log file is with just the obd2. The second file is with the Dual 160 bt connected. I did note a connect with the first file (don't know if it disconnected) The second file should sh...

Harry wrote:Yes, when it connects in Sensor List - even shortly - there is communication.

OK will try to do it.