Hi Guys, newbie to this forum, first post,cheers.

Been working on Z31, had a vacuum leak, in searching for it, removed plenum, did new plugs, leads, had my injectors rebuilt, replaced all vacuum and some coolant hoses, sensors, and rebuilt, timing belt and water pump done previously.

Tried to start, no go, checked codes, got a bloody list, 11, 13, 21, 22, 31, 34, 43, weird as it was running before, could not work out what the problem was, and looked on here yesterday to find Solitare had a post about 2 connections being similar, he mentioned 2 wire connectors and check this out, they were fine but the 4 wire connectors were incorrect, changed them over and she started first time.

Cannot find the post again, but to this man/woman I and my Z31 thank you very much, cheers