P018C - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P018C diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P018C code.

What Does P018C Code Mean?

OBD-II Code P018C is defined as a Fuel Pressure Sensor "B" Circuit Low

The Fuel Pressure Sensor monitors the fuel pressure in the fuel system. The Fuel Pump Control Module uses this information to adjust the fuel pump's on time as needed. If the Fuel Pump Control Module does not see a change in pressure from the Fuel Pressure Sensor when the fuel pump is activated, it will set code P018C.

P018C Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P018C Code

  • Powertrain Control Module (PCM) failure
  • Pressure sensor failure
  • Wiring issue

Common Repairs Needed for the P018C Code

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

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