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I HAVE A 1994 SUPRA it has been not wanting to start alot lately, now it wont start at all..... we have checked out all the usuall stuff like fuses, fuel,some relays... one thing we noticed is that the check engine light doesnt come on when you turn the key on, also figured out that pin # 31 from the ecu is not hot like it should be,the is the wire that safc2 and greddy bcc is powered by. and those are not coming on. we did add power to that wire and then the check engine light comes on and the car willl start,but as soon as we take the power away the car dies. what would cause that wire not to be hot? any help would be gratly appreciated