I'm putting a 13b-rew into my FC. I know, this isnt the section for talking about this sort of thing. But.



I've ran into a small problem wiht the wiring.



On the engine harness, on the ECU side. There are 4 plugs. Two are yellow. One is blue. And one is white.



What are the blue and white ones for? and are they needed for the engine to work?



I'm aware that the yellow ones are for the ECU.



Thanks much

not sure which section is for which...

but most of of whats in the main harness is emissions.. turbo.. motor .. wiring..

only thing i can think of thats not related to the motor is the ac.. ps and abs...

If it helps, I'm doing an absolute deletion of everything that isnt required for the car to run. Power Steering, Air Conditioning, I dont believe my car ever had ABS. Emissions are going away.



I'm in the middle of doing the Non-sequential and emissions delete. Also installing all of the block off plates.

i recall someone having an issue with their car not starting when they forgot to plug the blue harness in.. i will look tomorrow and see what it goes too.. i do remember one plug that went to a lil black box that basically hung freely, cant remember if it was blue or white.. i think it was for the FANs though.