P0051 2006 Infiniti G35 Code - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low
Quick Answer
Air-Fuel Ratio (A/F) sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. Common causes include Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection. 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
- P0051 2006 Infiniti G35 indicates Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low.
- Common causes
- Common causes include Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection.
- 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.
Code P0051 2006 Infiniti G35 Description
In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
What are the Possible Causes of the DTC P0051 2006 Infiniti G35?
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0051 2006 Infiniti G35?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0051 2006 Infiniti G35 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0051 2006 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0051 on a 2006 Infiniti G35?
- Common symptoms include poor fuel economy, rough idling, and illuminated check engine light.
2. What does the OBDII code P0051 for Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low mean on a 2006 Infiniti G35?
- This code indicates a malfunction in the heating element circuit of the air fuel ratio sensor located on bank 2 of the engine.
3. What are the possible causes of OBDII code P0051 on a 2006 Infiniti G35?
- The common causes include a faulty air fuel ratio sensor, damaged wiring or connectors, or a blown fuse related to the sensor heater circuit.
4. How can I diagnose the issue related to OBDII code P0051 on my 2006 Infiniti G35?
- You can use a multimeter to test the resistance of the air fuel ratio sensor heater circuit, inspect wiring for damage, and check the fuse related to the sensor.
5. Can I continue driving my 2006 Infiniti G35 with OBDII code P0051 active?
- It is not recommended to drive the vehicle with this code active, as it can lead to poor engine performance and potential damage to other components.
6. How can I repair OBDII code P0051 on my 2006 Infiniti G35?
- The typical repair involves replacing the faulty air fuel ratio sensor, repairing any damaged wiring or connectors, and ensuring the fuse related to the sensor is intact.
7. Is it possible to reset OBDII code P0051 on a 2006 Infiniti G35 without making any repairs?
- While clearing the code may temporarily turn off the check engine light, the underlying issue causing the code will persist until properly addressed.
8. Are there any preventive maintenance tips to avoid OBDII code P0051 on a 2006 Infiniti G35?
- Regularly inspecting and maintaining the air fuel ratio sensors, as well as the related wiring and connectors, can help prevent issues leading to this code.
9. How much does it typically cost to repair OBDII code P0051 on a 2006 Infiniti G35?
- The cost can vary depending on the cause of the issue and whether you perform the repairs yourself or take the vehicle to a mechanic. Estimates range from $200 to $500.
10. Will OBDII code P0051 on a 2006 Infiniti G35 affect the vehicle's emissions performance?
- Yes, a malfunctioning air fuel ratio sensor related to this code can lead to increased emissions and potentially cause the vehicle to fail emission tests.
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