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Just to answer my own question in case anyone's search comes across this thread.
This is a basic guide of how i wired up an obd2 plug and Line end check connector (LECC) to my jdm v7 sti conversion. I know the wiring is the same for an AUDM v7 and the obd2 plug pinout is probably the same/similar on a lot of similar era subarus.
Link to complete 2002 LHD & RHD wrx & sti manuals: http://www.mediafire...za FSM 2002.zip
OBD2 pin out - Using the standard pin out for obd2 (apposed to subarus opposite numbering)
OBD2 Pin 4 - A7 Ecu pin - Ground
OBD2 Pin 5 - A7 Ecu pin - Ground
OBD2 Pin 7 - A21 Ecu pin - Data
OBD2 Pin 9 - A20 LECC - pin 3 in the white 6 pin plug called line end check connector (LECC), or can by pass the LECC and run direct from obd2 plug to ecu
OBD2 Pin 11 - A10 LECC - pin 4 in the white 6 pin plug called line end check connector (LECC), or can by pass the LECC and run direct from obd2 plug to ecu
OBD2 Pin 12 - Runs to a Subaru specific data connection port and isn't needed in most cases, i left the pin empty
OBD2 Pin 13 - Runs to a Subaru specific data connection port and isn't needed in most cases, i left the pin empty
OBD2 Pin 16 - D10 Ecu pin - 12+ power
Hope this is helpful to someone
