If there was a tune its definitely not for performance reasons :lol: Its a bloody slow car. Id bet its DPF related. Id have assumed a failed checksum would prevent start. However the error has been there at least 6 years and counting and ive had no problems. The checksum dtc is just that the new ca...

Firstly, thank you to the creator of the tool and those that contributed. Anyone have idea why it intially reads the ECU part number correctly to then fails a few minutes later with "unknown cem part number 0" ? Im assuming my wiring is correct as it initially reads the correct part numbe...