Running an OBD2 logger w/ KPro

[PsyKotyk]

Hi Hondata smarties,

I'm running an ELM327 CanBus OBD-2 reader with my K-Pro for the purposes of doing some digital gauges on the in-car computer. ( in Linux )

I was just wondering if plugging the OBD-2 reader in causes the ECU to go into open loop mode or not. There seems to be a distinct change in idle pitch when I unplug it.

I'd love if there was an SDK or tech info for getting the values straight from the K-Pro connection, but I also understand that it's probably your most valuable intellectual property and the only thing keeping people from making knock offs.


http://www.elmelectronics.com/DSheets/ELM327DS.pdf

[Spunkster]

You will have to check with whoever makes that to see if they short the service check pins in the Diagnostic Connector.

[Hondata]

OBDII scanners based on the ELM327 chip do not short the SCS.