Okay great, thank you very much for that info. I'll make some adjustments and test!

I have read them, but either I missed it, or there is no standard for headers. Do you know how to determine which modules are in a vehicle so that I m...

Thank you both for your replies. Is the header 7E7 and/or 7E1 a "standard" for requesting data specifically from the engine ECU? In my example abo...