connecting to laptop

[reevio]

ive just got hold of my canems usb adaptor that works on all other ecus my leads giving me a comm port 7 or 8 depending on which usb i plug it in but the vems wont connect to it on megatune help really frustrating

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If its changing the com port depending on the USB port then you have a problem with the drivers.
Uninstall all the USB to COM port drivers and start afresh.

[reevio]

ok mate il try that now

[reevio]

says my comm ports 3 4 5 6 are taken so ive assinged it to 1

[reevio]

managed to get it connected today and tried it a second time and cant get it to connect on the vems tune or mega

[boostd audi]

sounds to me like you have bad ground or wires touching inside the db9 plug.

check you wiring to the db9. make sure you do not have a fault in the wiring.