P013A

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

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased fuel consumption
Deterioration in acceleration dynamics
Unstable operation at idle
Check Engine Light Is On

Causes

Dirty or worn oxygen sensor
Damaged or corroded sensor connector
Open or short circuit in wiring harness
Sensor Grounding Problems
Low fuel quality
Malfunction of the catalytic converter

How to Fix

Check the condition of the oxygen sensor and its connector
Check the integrity of the wiring harness and grounding
Clean or replace the oxygen sensor if necessary
Check the operation of the catalytic converter
Reset the error and take a test drive to check

Related codes

P0135 P0136 P0137 P0138 P0140 P0141