The purple one is the FCID plug, which is not needed if you don't have airco.
I'm also doing this conversion, placing a RB25DET S2 into my R32 GTS-T.
It's coming along fine and I haven't had any real problems yet.
I'm using a RB20DET engine loom and modifying it to work with the RB25DET. I'm going to take the complete loom for the injectors out of the RB25 loom and put it in the RB20 loom. (So I can keep the plug that connects all six injectors in one plug.)
My question is, where is the best place to get the 12V power feed for the injectors?
