Freematics Forum

Hello,

Is there a limit on the number of PIDs that can be added while collecting the data? I was not able to add more than 7. It seems to have an issue communicating once I added more than 7 PIDs. I also tried editing the buffer size in the readPID function.

Please let me know if anyone faced this issue before and what can be done about it.

Thank you
vasanthi

There is a limit on multiple reading (should be 6). You can read additional PIDs one by one.

Vasanthi91 wrote:
> Is there a specific way to figure out the available PIDs in a vehicle?

You can send the 0100 request which will produce a response from the PCM/ECU.