oh yea by your statement i am quite confused as to what supra you have
it sounds like it is a manual supra but you also mention that you checked the "coil" not "coilpacks" which suggests a 1ggte but you also mention that you have a "supra turbo" no "twin turbo" which suggests it could be a 7mgte lol
when you finally log back on do tell us what supra you have