I have an 06 Sierra l59 flex..called FIC and the guy was being an *** on the phone but they're reputable, told him what truck I had and I have ls1 siemen deka 60s. He said I need mini del to ev1. Get my truck taken apart and they're the wrong ones. Injector side is ok but harness side isn't. Well the adapter lines are black and red and my trucks wires are all different colors. Only simularity is one is solid and other had a stripe. Which wire goes where so I can get this show on the road or does it matter where the wires go? My number is 229-454-6941 names brett if anyone can help! Thanks!

 

i had the same problem a couple of weeks back make sure to cut the tape way back of your original connectors i think the heat makes the colors fade theres going to be one the same color in all that is positive and the ones that vary are negative idk how to explain but theres going to be one wire the same color thats the one you are looking for

 

So the ones that's the Same color are positive?

 

It really does not matter... but the ones that are different colors are the grounds going to the PCM, which grounds them to turn them on and off..

 

i never payed attention and i have swapped pigtails on my injectors twice... never a problem.

 

Thanks guys..aem sent me a fuel line that was about 4" too short for my fuel pump so I have to go tomorrow and get hose and seeing that FIC is only 3 hour from me ill just get them to send me the right ones that I paid money for in the first place. Really appreciate the help though guys

 

It doesn't matter. Injectors are not polarity sensitive.