its a easy fix simply buy the correct pig tail and solder it into the old harness at a good point do one at a time and use the electrical schematic to make sure you put the leads in the right way.
here is a link to the pigtails. after that youll need to solder them yourself and seal it with shrink tube.
Fuel Injector Connectors : Injector Connector : Injector Pigtails : Injector Clips : fuel injector clips : InjectorRX.com