AutoCodes – Honda – P1157 2010 Honda Accord

P1157 2010 Honda Accord Code - Air/Fuel Ratio Sensor 1 Range/Performance Problem

Quick Answer

The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. Common causes include Faulty Air/Fuel Ratio Sensor 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: P1157 2010 Honda Accord indicates Air/Fuel Ratio Sensor 1 Range/Performance Problem.
Common causes: Common causes include Faulty Air/Fuel Ratio Sensor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 4,931

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 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1157 2010 Honda Accord Description

The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. The A/F sensor transmits output voltage to the Engine Control Module (ECM). A heater for the sensor element is embedded in the A/F sensor (sensor 1). It is activated and heats the sensor to stabilize and speed the detection of oxygen content by controlling current flowing through the heater. An increase in the current levels off as the applied voltage to the element electrode reaches a certain range because the amount of oxygen which is led through the diffusion layer is limited. The current amperage is proportional to oxygen content in the exhaust gas, so the air/fuel ratio is detected by the measurement of the current amperage. The ECM compares a set target air/fuel ratio with the detected air/fuel ratio and controls the fuel injection timing.
If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the ECM uses A/F feedback control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich, and the ECM uses A/F feedback control to issue a Lean command.

OBDII Code P1157 2010 Honda Accord - Air/Fuel Ratio Sensor 1 Range/Performance Problem - AutoCodes.com — P1157 2010 Honda Accord Code - Air/Fuel Ratio Sensor 1 Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P1157 2010 Honda Accord?

Faulty Air/Fuel Ratio Sensor 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 P1157 2010 Honda Accord?

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 P1157 2010 Honda Accord 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 P1157 2010 Honda Accord code?

Need more information on how to fix the P1157 2010 Honda Accord code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1157 2010 Honda Accord 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 P1157 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P1157 in a 2010 Honda Accord?

- Common symptoms include poor fuel economy, rough idling, decreased engine performance, and potential issues with emissions.

2. What are the possible causes of the OBDII code P1157 in a 2010 Honda Accord?

- The code P1157 typically indicates a problem with the Air/Fuel Ratio Sensor 1, which could be caused by a faulty sensor, wiring issues, exhaust leaks, or a problem with the engine control module.

3. How serious is the Air/Fuel Ratio Sensor 1 Range/Performance Problem in a 2010 Honda Accord?

- While the vehicle may still be driveable with this code, it is important to address it promptly to prevent further damage to the engine and emissions system.

4. Can I continue driving my 2010 Honda Accord with the P1157 code?

- It is not recommended to ignore the P1157 code and continue driving the vehicle, as it can lead to reduced fuel efficiency and potential long-term engine issues.

5. How can I diagnose the Air/Fuel Ratio Sensor 1 Range/Performance Problem in my 2010 Honda Accord?

- A proper diagnosis involves using an OBDII scanner to read the code, checking the sensor's wiring and connections, and testing the sensor's voltage output.

6. Is it possible to repair the Air/Fuel Ratio Sensor 1 issue in a 2010 Honda Accord myself?

- Depending on your mechanical skills, you may be able to replace the sensor yourself. However, it's recommended to consult a professional mechanic for an accurate diagnosis and repair.

7. Will resetting the OBDII code P1157 in my 2010 Honda Accord make it go away permanently?

- Simply resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear after driving the vehicle for some time.

8. Are there any maintenance tips to prevent the recurrence of the P1157 code in a 2010 Honda Accord?

- Regularly checking and replacing the air/fuel ratio sensor at recommended intervals, along with maintaining the engine and exhaust system, can help prevent the reoccurrence of the P1157 code.

9. How much does it typically cost to repair the Air/Fuel Ratio Sensor 1 issue in a 2010 Honda Accord?

- The cost of repairing the Air/Fuel Ratio Sensor 1 problem can vary depending on the exact cause and whether you choose to do the repair yourself or take it to a professional mechanic. Costs can range from $200 to $500 or more.

10. Can a faulty Air/Fuel Ratio Sensor 1 affect the overall performance of my 2010 Honda Accord?

- Yes, a faulty Air/Fuel Ratio Sensor 1 can impact the engine's performance, fuel efficiency, and emissions, so it is crucial to address the issue promptly to maintain the vehicle's optimal performance.