Dreaded SAI/Evap monitors Not ready and P0442

[Lapister]

I had to replace the battery several mo back and I just realized yesterday that when I put the scanner to it just to check for any codes that SAI was not ready again. So again this morning I did the rev @2700 rpm during a cold start and again it went ready 8/8 while parked. Just wanted to let you all know it wasn't a fluke. I must have put about 2K miles since that battery replacement.

[Gelbster]

I battled long and hard with SAI issues. I did lots of research and checked/upgraded lots of parts. My conclusion was that:
first you need to do a thorough diagnosis.That is awful because it is so tedious but do it anyway because if you miss one leak all your work is wasted.
Second , do everything because access is so awful - how many times do you want to remove the alternator and maybe the Intake manifold?
Third, upgrade to silicone and brass.The cost is trivial and it will never fail.
Invest in a smoke machine or at least a Mighty Vac to test your work. Become a Master at using both otherwise you will be down the same rabbit hole endlessly.
Rebuild the SAI pump
Clean out the ports for the SAI system in the cylinder head.If they are plugged with carbon, no amount of other work and expense will be effective.

[kk2002s]

Gelbster:
What issues were you facing?
Did you have CELs?
What remedy finally corrected it?
I have no CELs (Other than the super random P0442) so have Zero direction in terms of failed parts. I have read that slow worn Post O2 sensors could cause the SAI not to complete it's cycle. I have seen from my Phone app that (1) of the Post O2 sensors seems to come up much slower than the other as far a measuring voltages in a similar range and behavior.
I took the Plenum tubes and TB off the other night and I can see much more needs to come out to really do any investigation. I'm thinking I need additional diagnostic equipment as well. I don't want to get into parts throwing
So I'm starting to lean towards taking it to a shop, my first time.