P018A

DTC P018A, sometimes indicated as P018A00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing fuel pressure sensor "b" circuit.

The fuel pressure sensor is responsible for sending readings to the ECU that indicate the fuel pressure in the system. When this sensor malfunctions, it can cause a range of issues, including the P018A code.
There are a few things that can cause this code, including a faulty fuel pressure sensor, a wiring issue, or a problem with the ECU. If you suspect that the fuel pressure sensor is at fault, you can test it by unplugging it and measuring the voltage at the connector. If the voltage is within the correct range, the sensor is likely bad and should be replaced. If the voltage is not within the correct range, the problem is likely with the wiring or the ECU.
If you are unable to determine the source of the problem, it is best to take the vehicle to a qualified technician for diagnosis and repair.

• P018A: Fuel Pressure Sensor B Circuit
• P018A: Fuel Pressure Sensor "B" Circuit
• P018A: Fuel pressure sensor B – circuit malfunction
• P018A 00: Fuel pressure sensor B - circuit malfunction