I recently got a consult interface and software from Australia...
Pete now has a webpage up for details....including prices
http://www.plmsdevelopments.com/consult_if.htm
A friend has tried this on an Almera N15, not sure if he's tried it on his P11 yet, and I've tried it on my Primera P10....
Here is the interface...
With the software you can monitor just about everything...
read and reset codes
datalog to a csv file
Active test, as well as putting the ECU in idle speed/timing mode
