Is this just a strange coincidence or do the O2 sensors effect this?

I also had O2 sensors not ready, but that's prob b/c I don't have rear O2's. They're tuned out, but I guess that doesn't fix the "not ready" problem. I assume Sims will fix that?

thanks in advance.

 

For emissions things to be "ready", they either have to go through a series of events (a driving cycle), or the codes have to be set a certain way in the tune itself so that when the PCM is flashed, everything shows ready right away. From what I remember, emissions readiness tests are reset every time the PCM is reflashed or if it loses power long enough that the backup battery drains.

So either complete a driving cycle, or have the tuner set the codes so that they show ready regardless (the legality of which I will not touch).