Hi There Im putting a 1uz into a old HR Holden but not sure whats up with the wiring told its easy but in this case not so ecu is a 89661-50380 with the 34p 22p 16p 28p T8-a Plug was told by suppyler that the 28p plug was not needed but from what i have read so far it is important as pin 22,9 and 14 on 28p plug need power could someone please confirm this also have beening looking at the wiring diagrams and cant same to find no black and organge wire that also so needs power but i do have a black and yellow wire mayb theres a colour change somewhere? any help would be big help Cheers Mark