I have a 2011 v6
I just recently got my car tuned on e85 by my street tuner i have no muffler resonator and a cold air intake.
When I got my tune the codes P0605 and P050E popped up sometimes when i idle my car idles rough and when i turn the ac on my car idles rough. When I shift to park or neutral it idles at like 1k then goes to 1.2 and back down and up over and over.
The codes is related to the PCM how do i diagnose this