Hi, I unclipped my fuel injector connectors and the clips broke due to the brittle age of the plastic. I bought new connectors to replace them and im having trouble figuring out which wires go to what, i.e. positive and negative. My replacement clips come with red and black wires like a typical positive negative but the injectors connectors on the car are different. I'm thinking that the yellow wire with a black stripe is the negative wire due to it being on every clip and the blue, brown, and red being the positive. Someone please help!!!!