OBD Guide

P014A

O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 2

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

Symptoms

  • Increased fuel consumption
  • Unstable engine operation
  • Increased emissions
  • Check Engine Light Illuminates

Causes

  • Oxygen sensor dirty
  • Sensor circuit malfunction
  • Leaks in the exhaust system
  • Problems with the fuel system
  • Malfunction of the catalytic converter

How to Fix

  1. Check the status of the Bank 2 Sensor 2 oxygen sensor
  2. Check the integrity of the wiring harness and sensor connector
  3. Check the exhaust system for leaks
  4. Check the operation of the fuel system
  5. If necessary, replace the oxygen sensor

Related codes

Error P014A by Vehicle Brand