1990 cutlass supreme help

Hi guys, a friend of mine has the 1990CS with a 3.1, and thinks his injector wires needs replacing. he does not get fire to the injectors, he said it was no injector pulse. the mech has replaced every thing on the car he can, to find the problem. I live in asheville nc, and we can not find the injector wires anywhere, even the junkyards, the junkyards say when they take the motors out they just cut all the wires, and the dealership is saying that they dont make parts for olds anymore. do any of you know where he might find a set.
thanks in advance for your help.

He can try another junkyard. In some junkyard, you can come take your part yourself and they don't cut any engine wire. I don't live in NC, so I can't tell you which one go.

Or he may try auto parts store, like CarQuest or NAPA. They have a parts manual, so they can find equivalent parts. Or at ACdelco

The part looks like that:

http://info.rockauto.com/getimage/getimage.php?imagekey=1217492&imageurl=http%3A//images.wrenchead.com/smartpages/partinfo_resize/DUS/PT2384.jpg

http://info.rockauto.com/getimage/getimage.php?imagekey=82385&imageurl=http%3A//images.wrenchead.com/smartpages/partinfo_resize/DUS/PT113.jpg


It seems compatible to chevy and GMC V6 models up to 2008!! Even GM have it. But don't deal with them, they don't know what they sell.

He can also but it online at http://www.rockauto.com or other auto parts online store.