Depressing problem.....
 

After buying my ms1 v3, I now can't get it to be reconised on the computer or tunstudio. Am buying a new USB to serial lead as this could be the falt? The person I got it off said it worked fine.

Thanks,

The manual has a comprehensive serial diagnostics section:
Megasquirt Serial Setup

I had a similiar problem and rebooting/reflash firmware with the boot jumper on inside. Now this was a diypnp which is a ms2 but I would start with trying to reload firmware

Hay, thanks for the reply. Ok I will do some testing. Fingers crossed. And I will wait for my new lead to come and try that as it comes with a disk with drivers as mine didn't. And then try the firmware. ( if new lead solved I will load newest firmwear anyway).

Also I'm after a new yellow stock ecu plug were can I get one in the uk?