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In a nutshell, the error code P018C on a Chrysler Pacifica signals low fuel pressure in the fuel system due to a faulty reading from the fuel pressure sensor. This issue is typically related to a circuitry problem with the sensor or its wiring. The sensor is usually found on the fuel rail or connecting lines. Symptoms of this problem may include difficulty starting the vehicle, decreased performance, lower fuel efficiency, and the "check engine" light turning on. Common causes of this error code include a failing fuel pump, damaged fuel lines, or a malfunctioning PCM. The typical cost to replace the fuel pressure sensor in a Chrysler Pacifica ranges from $130 to $210 including parts and labor.
My 2013 Chevrolet Sonic turns on but won't start.
The code P018C in a Chrysler Pacifica indicates an issue with the fuel pressure sensor b.