OBD Guide

P018B

Fuel Pressure Sensor B Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Difficulty starting the engine

Causes

  • Fuel pressure sensor B malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with the fuel pump or fuel pressure regulator
  • ECU malfunction

How to Fix

  1. Check the continuity of the fuel pressure sensor B circuit
  2. Check the sensor connector for corrosion or damage.
  3. Check the functionality of fuel pressure sensor B
  4. Check the fuel pump and fuel pressure regulator
  5. If necessary, replace the sensor or repair the circuit

Related codes

Error P018B by Vehicle Brand