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Alfa Romeo 145 - 146 Forum _ ECU Diagnostics _ ECU Diagnostics (DIY)

Posted by: GialloEvo94 30th October 2012 11:17

OK, I just did a bit more digging around and it looks like the PL2303 USB serial port interface doesn't support a baud rate of 10400bps that is required to communicate with an Alfa ECU. There is some mention that changing a registry setting might work (although no guarantee) but I can't find any information at all on what or where that registry setting is.

I suggest the easiest option will be to just get another cable that uses the FTDI chipset as these have been proven to work fine. Just ask the seller first if the cable they are selling uses the FTDI chipset before you purchase another one.

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