AutoCodes – Suzuki – P2272 Suzuki

P2272 Suzuki Code - HO2S Signal Stuck Lean Bank 2 Sensor 2

Quick Answer

The Engine Control Module (ECM) supplies a voltage near 450 mV between the heated oxygen sensor (HO2S) high signal circuit and the low reference circuit. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 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: P2272 Suzuki indicates HO2S Signal Stuck Lean Bank 2 Sensor 2.
Common causes: Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 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 959

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Nov 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2272 Suzuki Description

The Engine Control Module (ECM) supplies a voltage near 450 mV between the heated oxygen sensor (HO2S) high signal circuit and the low reference circuit. The HO2S varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean. The ECM monitors and stores the HO2S voltage information. The ECM evaluates the HO2S voltage samples in order to determine the amount of time that the HO2S voltage was out of range. The ECM compares the stored HO2S voltage samples taken within each sample period and determines if the majority of the samples are out of the operating range. The ECM detects that the rear HO2S voltage is less than 650 mV for more than 100 seconds, then an intrusive test is performed. The ECM will enrich the fuel mixture up to 30 percent and then wait for 10 seconds at 30 percent. The ECM detects that the HO2S voltage is less than 650 mV during the intrusive test for greater than 4 seconds or for a cumulative of 50 seconds, the Diagnostic Trouble Code (DTC) sets.

OBDII Code P2272 Suzuki - HO2S Signal Stuck Lean Bank 2 Sensor 2 - AutoCodes.com — P2272 Suzuki Code - HO2S Signal Stuck Lean Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P2272 Suzuki?

Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Heated Oxygen Sensor Bank 2 Sensor 2 harness is open or shorted
Heated Oxygen Sensor Bank 2 Sensor 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2272 Suzuki?

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 P2272 Suzuki 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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Need more information on how to fix the P2272 Suzuki code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2272 Suzuki code diagnosed by a professional: Find a repair shop in your area

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 P2272 Suzuki Code

1. What are the common symptoms of OBDII code P2272 on a Suzuki, indicating HO2S Signal Stuck Lean Bank 2 Sensor 2?

- Common symptoms include rough idling, decreased fuel efficiency, and potential engine misfires.

2. What are the possible causes of OBDII code P2272 on a Suzuki, indicating HO2S Signal Stuck Lean Bank 2 Sensor 2?

- Causes may include a faulty oxygen sensor, exhaust leaks, fuel system issues, or a malfunctioning catalytic converter.

3. How can I diagnose the HO2S Signal Stuck Lean Bank 2 Sensor 2 issue on my Suzuki related to code P2272?

- You can diagnose the problem by using an OBDII scanner to read the code, inspecting the oxygen sensor, checking for exhaust leaks, and testing the fuel system components.

4. Can I continue driving my Suzuki with OBDII code P2272 indicating HO2S Signal Stuck Lean Bank 2 Sensor 2?

- It is not recommended to drive your vehicle with this code as it can lead to further engine damage and may result in failing emissions tests.

5. What are the repair options for fixing OBDII code P2272 on a Suzuki due to HO2S Signal Stuck Lean Bank 2 Sensor 2?

- Repair options may include replacing the oxygen sensor, repairing exhaust leaks, addressing fuel system issues, or replacing the catalytic converter if necessary.

6. Will resetting the OBDII code P2272 related to HO2S Signal Stuck Lean Bank 2 Sensor 2 on my Suzuki make the problem go away?

- Resetting the code may temporarily clear the check engine light, but the underlying issue causing the code will still need to be diagnosed and repaired.

7. How much does it typically cost to repair OBDII code P2272 on a Suzuki due to HO2S Signal Stuck Lean Bank 2 Sensor 2?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Are there any preventive maintenance steps I can take to avoid encountering OBDII code P2272 on my Suzuki?

- Regularly servicing your vehicle, ensuring proper fuel quality, and promptly addressing any engine performance issues can help prevent the occurrence of this code.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P2272 on a Suzuki related to HO2S Signal Stuck Lean Bank 2 Sensor 2?

- Depending on the root cause, some DIY enthusiasts may be able to address the issue themselves, such as replacing the oxygen sensor or fixing minor exhaust leaks.

10. How long does it typically take to repair OBDII code P2272 on a Suzuki due to HO2S Signal Stuck Lean Bank 2 Sensor 2?

- The repair time can vary based on the specific cause and complexity of the issue, but it may take a few hours to a full day to diagnose and fix the problem.