OBD II is OBD II any compliant scanner should read just fine.
you went to an oil change place.. find an Autozone and have them check for free.
I went to the local oil change place, and i tried reading the check
> engine codes off my o4 ecu, but their unit just claimed err and wouldn't > read it.....
>
> Long story short is there a difference between odb 2 readers?
>
> Thanks
>