I'm going to fit a VAFC to my 96Spec JDM ITR and need to know if the ECU pinouts for the USDM ITR are the same. I have the diagram for the 00 USDM ITR P73 ecu, is it different to earlier 97-99 ITR ECUs or are the pin locations all the same. While i'm at it i was going to fit an A/F gauge also but i see that USDM ITRs have primary and secondary O2 sensor pins, but the JDM ITR only has a single O2 sensor, so i guess it is the primary in this case? And is it safe to assume if the pin locations are different that the O2 sensor wire at the ECu will be the thick white one on the third plug out?

 

You want the ecu pinouts from a 96-98.

Unless you want to read the Air Fuel ratio after it gets cleaned up by the Cat, You should always tap the Primary O2