P1157 Honda 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 Honda 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.
Code P1157 Honda Description
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.
What are the Possible Causes of the DTC P1157 Honda?
- 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 Honda?
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 Honda 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 Honda code?
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Need Help with the Code?
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Information for Specific Honda Models
- P1157 2008 Honda Accord — Air/Fuel Ratio Sensor 1 Range/Performance Problem
- P1157 2009 Honda Accord — Air/Fuel Ratio Sensor 1 Range/Performance Problem
- P1157 2010 Honda Accord — Air/Fuel Ratio Sensor 1 Range/Performance Problem
Frequently Asked Questions about P1157 Honda Code
1. What are the common symptoms of OBDII code P1157 in a Honda related to the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- Common symptoms include poor fuel economy, rough idling, hesitation or stalling during acceleration, and the illumination of the check engine light.
2. What can cause the OBDII code P1157 in a Honda, indicating an Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- Possible causes include a faulty air/fuel ratio sensor, wiring issues, vacuum leaks, exhaust system leaks, or a problem with the engine's fuel system.
3. How can I diagnose the OBDII code P1157 in my Honda with the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the sensor's wiring and connections, inspecting for leaks, and testing the sensor's voltage and resistance.
4. Can I continue driving my Honda with the OBDII code P1157 related to the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- It is not recommended to continue driving with this code as it can lead to poor engine performance and potentially cause further damage. It's best to address the issue promptly.
5. How do I repair the OBDII code P1157 in my Honda due to the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- Repair options may include replacing the air/fuel ratio sensor, repairing any wiring or connection issues, fixing vacuum or exhaust leaks, or addressing fuel system problems as necessary.
6. Is it possible to reset the OBDII code P1157 in my Honda without addressing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, the problem causing the code will persist. It's crucial to fix the root cause to prevent further issues.
7. How do I prevent the OBDII code P1157 related to the Air/Fuel Ratio Sensor 1 Range/Performance Problem in my Honda?
- Regular maintenance, such as keeping up with sensor replacements as recommended by the manufacturer, inspecting for leaks, and addressing engine performance issues promptly, can help prevent this code from appearing.
8. Can a DIY enthusiast repair the OBDII code P1157 in a Honda caused by the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- Depending on your skills and experience, you may be able to tackle some repairs like sensor replacement or basic wiring fixes. However, complex issues may require professional diagnosis and repair.
9. Will fixing the OBDII code P1157 in my Honda improve fuel efficiency and overall engine performance?
- Yes, addressing this code and resolving the Air/Fuel Ratio Sensor 1 Range/Performance Problem can lead to improved fuel efficiency, smoother engine operation, and better overall performance.
10. How long does it typically take to repair the OBDII code P1157 in a Honda due to the Air/Fuel Ratio Sensor 1 Range/Performance Problem?
- The repair time can vary based on the exact cause of the code and the complexity of the fix. Simple repairs like sensor replacement may take an hour or two, while more involved issues could require more time.
Discuss the causes and fixes for P1157 Honda OBDII Code
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Have not replaced any parts yet but was having this issuebut as long as I kept my rpm's at 1000 or above , the car ran great ..My boot leading from the air intake going to the air filter box was in really poor shape , had it all taped up because it was all crack and was def creating vaccum, leaks so I had bought A cold air intake figuring that would omit this issue but now I start the car and she will start but immediately stalls so not sure where to go , had just unplugged the fuel and air ratio sensor and reconnected so will try the sensor again and then will have to remove cold air intake to see which one actually helps
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