I have a compact V reg 2000 model fitted with the 1.9l - 8 valve engine. The model is an E36 and I am going for the engine swap. I know theirs loads of info about the swap and I am confident in the process.

I am unsure if I have OBD/EWS 2 or 3 what's the best and the sure way I can check before I go for the swap. I don't think I am going to attempt it if its the latter as I think this would be too much electrical work?

If it is the latter then would the swap be as straight forward i.e. plug and play if I got the E46 stuff? with OBD 3 EWS 3