P0152 Infiniti Code - Air Fuel Ratio Circuit High Bank 2 Sensor 1
Quick Answer
The P0152 Infiniti diagnostic trouble code indicates an issue with the Air Fuel Ratio (A/F) circuit on Bank 2 Sensor 1 in the vehicle's engine. Common causes include Faulty A/F ratio sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0152 Infiniti indicates Air Fuel Ratio Circuit High Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty A/F ratio sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P0152 Infiniti Description
The P0152 Infiniti diagnostic trouble code indicates an issue with the Air Fuel Ratio (A/F) circuit on Bank 2 Sensor 1 in the vehicle's engine. This sensor is responsible for measuring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the A/F ratio circuit on Bank 2 Sensor 1 reads a high voltage signal, it suggests that the engine is running rich, meaning there is too much fuel in the air-fuel mixture.
Common Causes of P0152 Infiniti
- Faulty A/F ratio sensor
- Damaged wiring or connectors in the sensor circuit
- Vacuum leak
- Malfunctioning fuel injector
- ECM malfunction
Symptoms of P0152 Infiniti
- Decreased fuel efficiency
- Reduced engine power
- Rough idling
- Hesitation during acceleration
- Increased emissions
How to Fix P0152 Infiniti
- Begin by visually inspecting the wiring and connectors in the A/F ratio sensor circuit for any damage or corrosion.
- Test the A/F ratio sensor using a multimeter to check for proper voltage output.
- Check for vacuum leaks in the intake system and repair as necessary.
- Inspect the fuel injectors for proper operation and replace any faulty injectors.
- If the issue persists, consider replacing the A/F ratio sensor or consulting a professional technician for further diagnosis.
Cost to Fix P0152 Infiniti
The typical repair costs for addressing the P0152 Infiniti code can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to get an accurate estimate for your vehicle.
Tech Notes for P0152 Infiniti
For Infiniti models before 2005 see: P0152 Infiniti
When is the Code Detected?
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Information for Specific Infiniti Models
- P0152 2003 Infiniti G35 — O2 Sensor Circuit High Bank 2 Sensor 1
- P0152 2004 Infiniti G35 — O2 Sensor Circuit High Bank 2 Sensor 1
- P0152 2005 Infiniti G35 — Air Fuel Ratio Circuit High Bank 2 Sensor 1
- P0152 2006 Infiniti G35 — Air Fuel Ratio Circuit High Bank 2 Sensor 1
Frequently Asked Questions about P0152 Infiniti Code
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