That was my thought too but I didn't know if it could run a little rough right below the threshold of setting a code. 02 sensors are perfectly fine and running in closed loop, brand new plug wires, brand new copper plugs, old plugs looked great, clean graph on the TPS, Maf sensor voltage is good at idle and full throttle, IAC swapped with a known good one, Injector resistance is good and the injectors are less than a year old 4 hole bosch injectors. My next test were going to be Crank/Cam position and Knock sensors while I'm at it. I've recently noticed what sounds like the beginning signs of a rod knock and I don't know if that's just because of it idling a bit rough or not, I pulled the oil pan, nothing looked hot, no movement in the rods other than some side to side which didn't concern me. While the pan was off I checked the reluctor wheel for looseness or missing teeth and that all looked great. I should start a new thread for this but I'm not exactly stumped, I just haven't found the problem yet.
When I say the engine is idling rough I mean it runs fine but just doesn't exactly feel very balanced. Idk It may run fine and I'm just over thinking it. Absolutely zero codes.