2004 Tj injector issues
 

Hi all. My 2004 Tj with 4L I6 is throwing injector open circuit codes. I don’t think I have a bad injector as the connectors are flaky and brittle and half tie wrapped together. I wanted to just get a new harness but I think the injectors must be aftermarket because there is a plug adaptor. Does anyone recognize the adaptor, injector or have experience with this to help me find the right parts? I’d rather not change all the injectors if I don’t have to
https://cimg8.ibsrv.net/gimg/www.jee...78e7a4fbb.jpeg
https://cimg9.ibsrv.net/gimg/www.jee...2195a6563.jpeg
https://cimg0.ibsrv.net/gimg/www.jee...25e324f5d.jpeg
https://cimg2.ibsrv.net/gimg/www.jee...7d73ef2ad.jpeg
https://cimg3.ibsrv.net/gimg/www.jee...f57cf4e3c.jpeg