junkyard swap

[junkyard supra]

hello all, i have a few questions about a swap that im trying to do in a junkyard (lots of fun) , i have 3 supras to work with , 1.. 7-mgte,manual, yellow plugs (totaled in front) 2.. 7-mgte,auto, grey plugs.. and 3, 7-mge,manual, yellow plugs. ok my problem is the motor i have to use is the one with the grey plugs, but i have an auto ecu. im trying to see if i can swap out just the plugs themselves or is it possible to use the yellow harness on the other motor? the reason why this is important is b/c i have an hks f-con and fuel cut defender but it is all for the yellow plugs.. PLEASE help!!, i really want to use that f-con and fuel cut all help is greatly appreciated