Quote Originally Posted by 83_SUS View Post
wat does the vag-com cable do im interested in knowing as i have a MK4 golf generation 2.0L
Its for carrying out diagnostic checks of any ECUs in the car, using the OBD port. www.ross-tech.com is the manufacturer and has loads of info.

It's pretty much the same as the system used by the dealer, to check the car out.

Gavin