Actually I can't be sure. Shiv figured it was my lpfp. I was going to replace it but after the carbon clean, I didn't have it come back. But, I had a loose turbo inlet pipe do I had lean codes on bank 2. Not sure if this was all related. After they did a smoke test, replaced that clamp for the inlet pipe, no more codes.
Sad to say, not sure what the issue or resolve was!
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