Im not sure how he verified oil pressure. Could have hooked up to a different port with a mechanical gauge or I believe you may be able to read oil pressure via the obd2 port under dash. That truck probably has AFM so he might have seen oil pressure to that system. Not really sure. If he replaced the sensor and its good now I wouldn’t lose any sleep over it. Ive seen them with the common bad pickup o-ring with s**t oil pressure run for years in jobsite trucks where guys who drove them could care less. I personally ran my 4.8 with like 15psi hot on the highway at 3400 rpm with no overdrive. Car made over 500HP on that setup and never skipped a beat. I pulled it apart 2 seasons later and the bearings looked perfect with I think 200k on them. I popped a new pump and o-ring in it and it shot up to 40psi at idle hHahahahaha. I was like “hmmmm odd”. They are pretty resilient.
