is that where a chip upgrade will go or is it something else. its a new clio
a lot of diagnostic information is done through the multiplex wiring network which the diagnostic connection is wired into.there are other wires in the diagnostic connection also used for diagnosis as well as a power and an earth to power the clip can connection box.although the obd moniters certain computers it is actually a separate system but you still access it through this connection.Quote: Originally posted by dogmaul on 09 March 2004
just search on google obd2 mapping lots of info for non beleivers