Can anyone tell me what type of OBD code reader would read my 99 WRX GC8 with an AE801 ECU?

Better yet does anyone have a reader I can borrow? My mate tried his cheap OBD 2 reader and it wont connect the the ECU but will connect to his 2010 FG Falcon.
I am going to try another ECU its an AE802 and see if that will work.

Back ground issue is we are having trouble starting the car. it has fuel and spark but will not fire. So we want to read some codes and see if there's a sensor that had the chop.