AutoCodes – Infiniti – P1167 Infiniti

P1167 Infiniti Code - Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2

Quick Answer

The heated oxygen sensor 2 (rear), after three way catalyst, monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Heated Rear Oxygen Sensor Bank 2, Heated Rear Oxygen Sensor Bank 2 harness is open or shorted, Heated Rear Oxygen Sensor Bank 2 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: P1167 Infiniti indicates Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2.
Common causes: Common causes include Faulty Heated Rear Oxygen Sensor Bank 2, Heated Rear Oxygen Sensor Bank 2 harness is open or shorted, Heated Rear Oxygen Sensor Bank 2 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 14,149

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 May 04, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P1167 Infiniti Description

The heated oxygen sensor 2 (rear), after three way catalyst, monitors the oxygen level in the exhaust gas on each bank. Even if switching characteristics of the heated oxygen sensor 1 (front) are shifted, the air fuel ratio is controlled to stoichiometric, by the signal from the heated oxygen sensor 2. This sensor is made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. Under normal conditions the heated oxygen sensor 2 is not used for engine control operation.

OBDII Code P1167 Infiniti - Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2 - AutoCodes.com — P1167 Infiniti Code - Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2

What does this mean?

What are the Possible Causes of the DTC P1167 Infiniti?

Faulty Heated Rear Oxygen Sensor Bank 2
Heated Rear Oxygen Sensor Bank 2 harness is open or shorted
Heated Rear Oxygen Sensor Bank 2 circuit poor electrical connection
Fuel pressure
Injectors
Intake air leaks

How to Fix the DTC P1167 Infiniti?

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

Replacing the Rear Oxygen (O2) Sensor usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1167 Infiniti 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 P1167 Infiniti code?

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Information for Specific Infiniti Models

P1167 2003 Infiniti G35 — Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2
P1167 2004 Infiniti G35 — Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2
P1167 2005 Infiniti G35 — Heated Rear Oxygen Sensor 2 Maximum Voltage Monitoring Bank 2

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.