P0164 — O2 Sensor Circuit High Voltage Bank 2 Sensor 3

What Does P0164 Mean?

P0164 is a diagnostic trouble code indicating: O2 Sensor Circuit High Voltage Bank 2 Sensor 3. This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0164

⚠️ Check Engine Light (MIL) illuminated
⚠️ O2 Sensor reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Poor fuel economy

Common Causes

🔍 Short to voltage in O2 Sensor wiring harness
🔍 Corroded or water-damaged O2 Sensor connector
🔍 Faulty O2 Sensor outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P0164 mean?

P0164 indicates: O2 Sensor Circuit High Voltage Bank 2 Sensor 3. The vehicle's computer has detected that the O2 Sensor is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0164?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P0164 for extended periods may cause additional problems.

How much does it cost to fix P0164?

Repair costs for P0164 typically range from $20 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair O2 Sensor wiring for short to voltage
🔧 Clean or replace corroded O2 Sensor connector
🔧 Replace faulty O2 Sensor

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P0164: O2 Sensor Circuit High Voltage Bank 2 Sensor 3