Hey guys I was wondering if there was anyway to differentiate the wires on it's respective injector. The reason I ask is because I got a wiring harness from a junker that is in better shape then my vans harness and want to swap it out but I'm not sure which connector goes to which injector...is there a code written on each individual wire that indicates power or ground to 1 2 3 4 as far as I can see there is nothing.