CEL PCV System Bank - Bank 1 Unresponsive

Yes, yes... I should've checked the service history before I bought my truck. I was bored/curious and looked back on the service history for my 5/23 build and found this nugget. It was not disclosed to me during sale, which I'm fine with since it was resolved. I'm over 7,000 miles without issues so I have no concerns, but I'm curious how much was involved to fix this. Does anyone know if said Bank 1 is easily accessible, or is there some teardown required?

I'm also curious how things make it past QA at the factory. If this is correct and a code was present at the factory, why do they ship it out? Does someone just say "Eh, let the dealer figure it out"?

ENGINE DIAG

ENGINE DIAG ~|~VEH HAS CHECK ENGINE AND PARKING BRAKE LIGHTS ON. ADVISE ~|~P2C9000. CLEARED CODE AND TEST DROVE, LIGHT RETURNS AFTER 1 BLOCK OF DRIVING. INSPECTED BANK 1 AIR CHARGE SYSTE, NO LEAKS FOUND. PRESSURE SENSOR CHECKS OK. INSPECTED AND COMPARED PCV SYSTEM BANK TO BANK. BANK 1 IS UNRESPONSIVE. DISASSEMBLED BANK 1 PCV SYS ~|~REMOVED BOLT, CLEARED CODE, AND TEST DROVE 12 MILES, OK. BOLT WAS IN SYSTEM FROM FACTORY. DTC HISTORY SHOWS SAME CODE WHEN TRUCK WAS STILL AT FACTORY. 171991 2.5 T1 8A T2 54

 

Hey even Texans occasionally make a mistake, right? My build date was 2/23 was a dealer demo almost 8500 on now it yes they changed oil at 5000 no issues so far...curious where you got the info?

 

I got it from the service history on the owners site. If I look at history for the app it doesn't show it.

 

Wow, I checked mine it had the fuel tube replaced under recall, reprogrammed skid control and parking brake ecu under campaign, second key programmed and got checked for tonneau cover recall-but doesn't have one.
All done in December at 6000 miles (was a demo) Thanks for the tip! Doesn't show oil change but it has a sticker in windshield saying it was done and due again at 11k miles...my dealer recognizes 5-6k oil changes not 10k.
I'll be bringing it in for one at 10k or so and if they won't pay for one at 15k I'll do it. My truck is the same color as yours but 1794 TRD with saddle interior.