Originally Posted by
Stu @ M Developments
That is the feature tuners are likely upset at mate as Simon has publicly announced he has done that and is releasing the software to do it. Its not something he has designed, its a backdoor that Pectel designed in over 20 years ago that we all knew existed but didn't utilise as we have no wish to copy other tuners software or make it possible for others to do so.
The data stream wasn't a Pectel thing, from what I understand. The serial output is a feature of the the Motorola processor in the ECU. Pectel were the 1st to utilize this with the monitor initially designed for motorsport uses.
Any software that is designed to read RS232 data isn't actually decoding any tuners chip data, as the chip isn't being accessed.