Look here: Xprog-m programmer is confirmed to work no issues with Peugeut 307 MCH68912 Mask 3K91D
Car and BSI:
Peugeut 307
Valeo BSI as MCU MCH68912 Mask 3K91D
ECU programming tool: Xprog-m
Source: http://www.obd2diy.fr/wholesale/x-prog-box-ecu-programmeur-xprog-m-avec-usb-dongle.html
Pinout:
Connection:
