aciddave

Hi guys, After owning a mk1 sharan and now a mk2 galaxy tdi, I'm a little confused and baffled by my latest problem.... I've looked through loads of forums including this one and can't seem to see the answer and hope some tech expert on here can help with some answers... A couple of days ago I connected to the ecu using kwp200plus and downloaded the ecu map to have a look at. It downloaded it ok, but ever since it now won't start! I put key in and turn to pos.2, I've noticed the glow plug light doesn't come on and the immobiliser light is flashing fast as though it can't read the chip. This happens with both my keys and the engine just turns and turns and doesn't attempt to fire. Also I now cannot connect with vcds lite and the cable, it comes up with 'too many communication errors' that's trying to connect to ANY module. I'm stuck to say the least..... Any advice would be most gratefully received