P018B - OBD II Trouble Code

Our automotive experts have put together the following information about the P018B 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 P018B code.

OBD II Fault Code

• OBD II P018B

OBD-II Code Decreased engine performance is defined as a Fuel Pressure Sensor "B" Circuit Range/Performance

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 P018B.

Decreased engine performance Symptoms

• Decreased engine performance
• Increased fuel consumption

Common Problems That Trigger the P018B Code

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

Common Repairs Needed for the P018B Code

• Fuel Pump Replacement