AutoCodes – Infiniti – P2097 Infiniti

P2097 Infiniti Code - Post Catalytic Fuel Trim System Too Rich Bank 1

Quick Answer

The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. Common causes include Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1, Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open or shorted, Air Fuel Ratio (A/F) Sensor Bank 1 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: P2097 Infiniti indicates Post Catalytic Fuel Trim System Too Rich Bank 1 .
Common causes: Common causes include Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1, Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open or shorted, Air Fuel Ratio (A/F) Sensor Bank 1 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 8,262

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2097 Infiniti Description

The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element. The sensor is capable of precise measurement λ= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide λ range. The exhaust gas components diffuse through the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative oxygen density in lean. Also this current relative hydrocarbon density in rich.

OBDII Code P2097 Infiniti - Post Catalytic Fuel Trim System Too Rich Bank 1 - AutoCodes.com — P2097 Infiniti Code - Post Catalytic Fuel Trim System Too Rich Bank 1

What does this mean?

What are the Possible Causes of the DTC P2097 Infiniti?

Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1
Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open or shorted
Air Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection
Fuel pressure
Fuel injector
Intake air leaks
Exhaust leaks

How to Fix the DTC P2097 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2097 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 P2097 Infiniti code?

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Need Help with the 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 P2097 Infiniti Code

1. What does the OBDII code P2097 mean on an Infiniti?

The P2097 code indicates that the post-catalytic fuel trim system on bank 1 is running too rich, meaning thereâ€™s too much fuel or not enough oxygen in the exhaust gases after the catalytic converter.

2. What are the common symptoms of code P2097 on an Infiniti?

Common symptoms include reduced fuel efficiency, a check engine light, rough idling, hesitation during acceleration, and a noticeable fuel smell from the exhaust.

3. What causes the P2097 code to appear in an Infiniti?

Possible causes include a faulty downstream oxygen sensor, exhaust leaks, a damaged catalytic converter, a malfunctioning fuel injector, or an issue with the engine control module (ECM).

4. Can a bad oxygen sensor trigger the P2097 code on an Infiniti?

Yes, a faulty downstream oxygen sensor can provide incorrect readings to the ECM, leading to the P2097 code.

5. How do I diagnose the P2097 code on an Infiniti?

Diagnosis typically involves scanning for additional codes, inspecting the downstream oxygen sensor, checking for exhaust leaks, and reviewing the fuel trim data with an OBDII scanner.

6. Is it safe to drive an Infiniti with the P2097 code?

While it may be safe to drive for short distances, prolonged driving with this code can damage the catalytic converter and reduce fuel efficiency.

7. How much does it cost to fix the P2097 code on an Infiniti?

Repair costs vary but can range from $100 for an oxygen sensor replacement to $1,000 or more if the catalytic converter needs to be replaced.

8. Can an exhaust leak cause the P2097 code in an Infiniti?

Yes, an exhaust leak ahead of the downstream oxygen sensor can cause incorrect readings and trigger the P2097 code.

9. How can I fix the P2097 code on an Infiniti?

Repairs may include replacing the downstream oxygen sensor, fixing exhaust leaks, cleaning or replacing fuel injectors, or addressing issues with the catalytic converter.

10. Will clearing the P2097 code resolve the issue on my Infiniti?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.