P013C

O2 Sensor Slow 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
Check Engine Light Is On
Reduced engine power

Causes

Dirty or worn oxygen sensor
Damage to the sensor wiring harness
Leaks in the exhaust system
Malfunction of the catalytic converter
Problems with the fuel system (injectors, pressure regulator)

How to Fix

Check the integrity of the wiring harness and sensor connector
Analyze the sensor signal using an oscilloscope
Check the exhaust system for leaks
Clean or replace the oxygen sensor if necessary
Check the operation of the fuel system

Related codes

P013D P0140 P0172 P0175