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P0523 Diagnostic Trouble Code Discussion for October 2010

Engine Oil Pressure Sensor Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0523
Help Request Posted
2005 Cadillac CTS 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G60P567X5
P0523: Engine Oil Pressure Sensor Circuit High Voltage. ... car came in yester day running rough, scanned and found codes P0206,P0306, P0523, PO521, AND PO443, So we put in new a/c delco plugs and other shop put in autolite plugs. after replacing the plugh all of the codes went away, and now we have a P0306 AND P04...
October 12, 2010