P0164

O2 Sensor Circuit High Voltage Bank 2 Sensor 3

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

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

Causes

Bank 2 Sensor 3 Oxygen Sensor Malfunction
Open or short circuit in the sensor circuit
Sensor Grounding Problems
Engine ECU malfunction
Very rich fuel mixture

How to Fix

Check the continuity of the oxygen sensor circuit
Check sensor resistance and voltage
Replace the oxygen sensor if necessary
Check and clean circuit contacts
Scan the ECU for other errors

Related codes

P0137 P0138 P0154 P0172