Chrysler PT Cruiser
On the 2003 Chrysler PT Cruiser, the P0522 is a fairly straight forward code pointing to a fault with the Oil Pressure Sensor (aka Oil Pressure Switch). This is a actually a fairly common problem item on these vehicles. Carefully inspect the electrical connector and as far up the harness as you can, looking for any loose, broken, damaged or oil-soaked wires. If the visual inspection checks ok, replacing the Oil Pressure Sensor is the most common solution here.
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