AutoCodes – Infiniti – P1031 2005 Infiniti G35

P1031 2005 Infiniti G35 Code - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1

Quick Answer

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range. Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 1, Air Fuel Ratio Sensor 1 harness is open or shorted, Air Fuel Ratio Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1031 2005 Infiniti G35 indicates Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1.
Common causes: Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 1, Air Fuel Ratio Sensor 1 harness is open or shorted, Air Fuel Ratio Sensor 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,325

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 02, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1031 2005 Infiniti G35 Description

OBDII Code P1031 2005 Infiniti G35 - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1 - AutoCodes.com — P1031 2005 Infiniti G35 Code - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1

What does this mean?

What are the Possible Causes of the DTC P1031 2005 Infiniti G35?

Faulty Air Fuel Ratio Sensor 1 Bank 1
Air Fuel Ratio Sensor 1 harness is open or shorted
Air Fuel Ratio Sensor 1 circuit poor electrical connection

How to Fix the DTC P1031 2005 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.

What does this mean?

Code Tech Notes

There is a Factory Service Bulletin for the 2005 Infiniti G35:
2005 Infiniti G35 Factory Service Bulletin OBDII Code P1031

The bulletin suggests reprogramming the Engine Control Module (ECM) first before replacing any parts.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1031 2005 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.

Need more information about the P1031 2005 Infiniti G35 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1031 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1031 on a 2005 Infiniti G35?

- Common symptoms of code P1031 include poor fuel economy, rough idling, and hesitation during acceleration.

2. What does the OBDII code P1031 mean on a 2005 Infiniti G35?

- OBDII code P1031 in a 2005 Infiniti G35 indicates a problem with the Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1.

3. What are the possible causes of OBDII code P1031 on a 2005 Infiniti G35?

- Possible causes of code P1031 include a faulty air fuel ratio sensor, damaged wiring or connectors, or a problem with the sensor heater circuit.

4. How can I diagnose the OBDII code P1031 on my 2005 Infiniti G35?

- Diagnosing code P1031 typically involves checking the sensor's resistance, inspecting wiring for damage, and testing the sensor heater circuit for proper voltage.

5. Can I still drive my 2005 Infiniti G35 with OBDII code P1031?

- It is not recommended to drive your vehicle with code P1031 as it can lead to poor engine performance and potential damage to other components.

6. How do I repair OBDII code P1031 on a 2005 Infiniti G35?

- Repairing code P1031 often involves replacing the faulty Air Fuel Ratio Sensor 1, repairing damaged wiring or connectors, and resetting the error code.

7. Are there any DIY tips for fixing OBDII code P1031 on a 2005 Infiniti G35?

- DIY tips for fixing code P1031 include checking and cleaning the sensor connectors, inspecting the sensor wiring for damage, and ensuring proper sensor installation.

8. Can a dirty air filter cause OBDII code P1031 on a 2005 Infiniti G35?

- While a dirty air filter can affect engine performance, it is not a direct cause of code P1031. The issue is typically related to the air fuel ratio sensor or its heater circuit.

9. How long does it take to repair OBDII code P1031 on a 2005 Infiniti G35?

- The repair time for code P1031 can vary depending on the exact cause, but it typically takes a few hours to diagnose and replace the faulty components.

10. Will resetting the OBDII code P1031 on a 2005 Infiniti G35 make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.