Timing chain replacement

I would try eBay, they seem to have everything.

Haha, right ; >)

Okay Ken, I replace 2,4,6,8 all seal on those four injectors. It did great at first, after a couple days the miss codes 302,4,6 and 316 came back. So I began to watch it, creating the codes ect trying to pin point what exactly and when they come on. It seems it is only on a cold start , after it has warmed up and I clear the codes, it never comes back until like the next morning or a cold start. I used the correct tools to install the seals and injectors the only difference is now, I do not get a miss code for #8 .

It sounds like a coil is shorting out causing the miss on the other cylinders or a bad ground for the PCM. Here are the engine wiring diagrams so you can see how the system works.

Use this guide:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know, you might need to replace the coils or the injectors on that side to find the problem.