prixpro89 Posted June 19, 2006 Report Share Posted June 19, 2006 Hey guys, My buddy was wondering if the wiring harness for his 1990 Lumina Euro 3.1 will hook up to a 1991 3.4L DOHC out of a Z34. Does he have to change the wiring harness or not. Anything else that has to be changed let me know please. We are bolting the Z34's subframe with everything on it upto the Euro. Quote Link to comment Share on other sites More sharing options...
patgizz Posted June 19, 2006 Report Share Posted June 19, 2006 wiring different, however unplug it at the firewall of the donor car and plug it into the new one. cradle is different but you're already taking care of that. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted June 21, 2006 Report Share Posted June 21, 2006 pat is on the money. lay the entire engine harness with all wiring and the ecm atop the engine and tranfer it all as a unit. the firewall connector he mentions is on the passenger side behind the alternator. Quote Link to comment Share on other sites More sharing options...
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