There seems to be a huge range of tools on the market for this purpose can anyone recommend the most straightforward to use with a laptop with the best range on sensor data not just fault codes.
Do a good search Gendan OBDII Interface for laptops, might be what you are after. Or purcahse the EZscan 4000 handheld device that you plug in to the either of the two ports, which gives lives data and you can download it to yr laptop too. Hope this helps