OBD Guide

P013B

O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2

P013B is an OBD-II diagnostic trouble code meaning: O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2. Common causes: oxygen sensor wear, sensor contamination (oil, antifreeze). Estimated repair cost: $56–167.

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

Symptoms

  • Unstable idle
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Is On

Causes

  • Oxygen sensor wear
  • Sensor contamination (oil, antifreeze)
  • Damage to the sensor wiring harness
  • Short circuit or open circuit in the sensor circuit
  • Exhaust system problems (leaks)
  • Malfunction of the catalytic converter

How to Fix

  1. Check the condition of the sensor and its connector
  2. Check wiring integrity
  3. Clean the sensor from dirt (if possible)
  4. Replace the oxygen sensor if necessary
  5. Check the exhaust system for leaks

Related codes

Error P013B by Vehicle Brand

FAQ

What does the P013B code mean?

P013B is an OBD-II diagnostic trouble code that indicates: O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 2

What causes a P013B error code?

The most common causes of P013B include: Oxygen sensor wear; Sensor contamination (oil, antifreeze); Damage to the sensor wiring harness; Short circuit or open circuit in the sensor circuit.

How do I fix a P013B diagnostic trouble code?

To fix P013B: Check the condition of the sensor and its connector. Check wiring integrity. Clean the sensor from dirt (if possible). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P013B?

Limited driving only, diagnose soon

How much does it cost to fix P013B?

The estimated repair cost for P013B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat