P2C65

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Slight deterioration in fuel consumption
Reduced engine power
Unstable idling
Dips when braking

Causes

Bank 1 oxygen sensor malfunction, sensor 3
Damage to the wiring to the sensor
Leaks in the exhaust system
Problems with the catalytic converter
Malfunctions in the fuel system

How to Fix

Check the condition of the oxygen sensor and its connector
Test the wiring to the sensor
Check the exhaust system for leaks
Replace the faulty oxygen sensor if necessary
Diagnose the catalytic converter

Related codes

P2C64 P2C66 P0138