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P0521 Diagnostic Trouble Code Discussion for August 2013

Engine Oil Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0521
Help Request Posted
2009 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCEK23M59
P0521: Engine Oil Pressure EOP Sensor Performance. ... light on. P0521 - we went through the ppt and decided to replace the oil pressure sensor. The light came back on a few days later. I do NOT believe there is an engine oil pressure issue. Thanks, Mike
August 27, 2013