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P4512 Diagnostic Trouble Code Discussion for March 2022

The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The signal offset is outside the permissible range.


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Trouble Ticket Help Requests for DTC P4512
Help Request Posted
2015 Mercedes-Benz S550 4.7L MIL Lamp on VIN: WDDUG8FB1F
P4512: The pressure sensor/pressure switch of the evaporative emission control system has a malfunction. The signal offset is outside the permissible range. Good day all. Checking to see if anyone has had any experience with this issue. Customer came in with a 2015 S550 that has a issue while filling the gas tank. If you put the fuel nozzle in the tank and start filling the tank, it will pop as if it is full w...
March 17, 2022