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P0521 Diagnostic Trouble Code Discussion for June 2018

Engine Oil Pressure Sensor Performance


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Trouble Ticket Help Requests for DTC P0521
Help Request Posted
2008 Chevrolet Silverado 1500 LTZ 6.0L Misfire VIN: 2GCFK19Y88
P0521: Engine Oil Pressure Preformance. Hi Everybody, I have this 08 Silverado that has a misfire when slowing down when hot. #1 cylinder is the offending cylinder and what I have discovered is its the AFM that does not turn off on #1 when commanded off (Ether the lifter sticks or the solenoid s...
June 20, 2018