OBD Guide

P014B

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

P014B is an OBD-II diagnostic trouble code meaning: O2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 2. Common causes: oxygen sensor malfunction, damage to the sensor wiring harness. Estimated repair cost: $56–167.

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

Symptoms

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

Causes

  • Oxygen sensor malfunction
  • Damage to the sensor wiring harness
  • Leaks in the exhaust system
  • Problems with the fuel system
  • Sensor contamination

How to Fix

  1. Check the condition of the oxygen sensor and its connector
  2. Check wiring harness for damage
  3. Check the exhaust system for leaks
  4. If necessary, replace the oxygen sensor
  5. Clear the error and check if it returns

Related codes

Error P014B by Vehicle Brand

FAQ

What does the P014B code mean?

P014B is an OBD-II diagnostic trouble code that indicates: O2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 2

What causes a P014B error code?

The most common causes of P014B include: Oxygen sensor malfunction; Damage to the sensor wiring harness; Leaks in the exhaust system; Problems with the fuel system.

How do I fix a P014B diagnostic trouble code?

To fix P014B: Check the condition of the oxygen sensor and its connector. Check wiring harness for damage. Check the exhaust system for leaks. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P014B?

Limited driving only, diagnose soon

How much does it cost to fix P014B?

The estimated repair cost for P014B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat