Recurring CEL and P0522 Code in 2007 Jeep Grand Cherokee 5.7L Hemi: Oil Pressure Sensor Diagnosis

I own a 2007 Jeep Grand Cherokee Limited with the 5.7L Hemi engine. Last night, while idling at a traffic light, the low oil pressure warning light activated and the vehicle entered limp mode. I restarted the engine, which resolved the issue temporarily. The problem did not reoccur during subsequent drives. However, to prevent future incidents—especially on highways—I recently performed a transmission service (pan removal, filter replacement, and addition of 7 quarts of ATF+4). Afterward, I confirmed that oil levels were normal. I then installed a BWD aftermarket oil pressure sensor to monitor system performance. The readings showed adequate pressure with appropriate fluctuations during idle—though the idle pressure was high at around 50 psi. Following installation, I replaced the oil filter and cleared the Check Engine Light (CEL). While the CEL initially turned off, it soon returned every time I cleared it. I subsequently visited Advance Auto Parts and replaced the sensor with a different unit, but the issue persisted—clearing for one day before returning. Notably, I now see P0522 (Oil Pressure Sensor Circuit Malfunction) without any illumination of the low oil pressure warning light on the dashboard. The wiring connections appeared intact during replacement. After researching online, I suspect that a genuine Mopar (OEM) oil pressure sending unit may be required instead of aftermarket alternatives. Given that the dashboard oil pressure warning has not lit up despite repeated code appearances, I'm wondering if this points to an underlying issue beyond the sensor itself—such as wiring faults or ECU misinterpretation. Any insights into diagnosing P0522 in a 2007 Jeep Grand Cherokee Hemi? Is it possible that the sensor is not the root cause despite the code appearing? Thanks for any guidance.