I never thought that getting diagnostic programs to work would be so time consuming - unless I can get this working this weekend, I will have to give up and just let garages keep fleecing me. I just don't have the time to devote to trying to get this to work - and my wife thinks I'm getting arsy!
Here's whats going on now. As far as I know, comport 4 (which was created when I downloaded the VCP driver from FDTIchip.com) is configured ok. However when I plug into the car, free download of MultiECUscan will not connect to the ECU. When I do a scan for interfaces, it finds two serial ports....COM4, which is the one created above, but also COM 3, which is not even listed on my list of comports on my laptop device manager (I have even set it to show unused com ports).
When I try to test each interface, the test on com3 completes but all the test times are way under and it does not show as test completed ok. The test on com4 only gets as far as 250ms and then times out and stops. I have set the latency on com4 down to 1 (as suggested by MultiECUscan). I can't do anything with com3 as it apparently doesn't exist!!
I have tried uninstalling the driver & reinstalling but am now going around in circles. Does anyone have any bright ideas? I am running this off a 4 year old Toshiba laptop running Windows XP SP3 - I have another newer Acer laptop running Visat - would it be worth trying all over again on a different machine??
Before I condemn the whole lot to the bin, I could really do with some help. I only went down this road as my 147 is running like a pig. Rant over!