P1172 Acura Code - Air Fuel Ratio Sensor Circuit Out of Range High
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 Bank 1 Sensor 1, Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio 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
- P1172 Acura indicates Air Fuel Ratio Sensor Circuit Out of Range High.
- Common causes
- Common causes include Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1, Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio 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.
Code P1172 Acura Description
What are the Possible Causes of the DTC P1172 Acura?
- Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1
- Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted
- Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection
How to Fix the DTC P1172 Acura?
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 P1172 Acura 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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Frequently Asked Questions about P1172 Acura Code
1. What are common symptoms of OBDII code P1172 in an Acura related to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Common symptoms may include poor engine performance, decreased fuel efficiency, and illuminated Check Engine light.
2. What are the possible causes of OBDII code P1172 in an Acura indicating an issue with the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Possible causes include a faulty rear air fuel ratio sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's air-fuel mixture.
3. How can I diagnose the OBDII code P1172 on my Acura if it relates to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Diagnosing this code may involve using an OBDII scanner to retrieve the fault code, visually inspecting the sensor and its connections, and performing voltage tests to check sensor operation.
4. Can I continue driving my Acura with OBDII code P1172 indicating an issue with the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- It is not recommended to continue driving with this code present, as it can lead to further engine problems and potential damage if left unresolved.
5. How can I repair OBDII code P1172 in my Acura related to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Repair options may include replacing the rear air fuel ratio sensor, repairing damaged wiring or connectors, fixing exhaust leaks, and ensuring the engine's air-fuel mixture is correct.
6. Is it possible to reset the OBDII code P1172 in an Acura myself if it pertains to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- You can attempt to clear the code using an OBDII scanner, but it is important to address the underlying issue causing the fault code to prevent it from reappearing.
7. How much does it typically cost to repair OBDII code P1172 in an Acura involving the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Repair costs can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or other necessary fixes that could range from a few hundred to over a thousand dollars.
8. Are there any DIY tips for resolving OBDII code P1172 in an Acura associated with the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- DIY tips may include carefully inspecting sensor connections and wiring for damage, ensuring proper installation of a new sensor if needed, and following manufacturer guidelines for troubleshooting the code.
9. How urgent is it to address OBDII code P1172 in an Acura linked to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- It is recommended to address this code promptly to prevent any potential engine damage or performance issues, as prolonged driving with this fault can lead to more significant problems.
10. Can weather conditions or driving habits affect the occurrence of OBDII code P1172 in an Acura related to the Rear A/F Sensor Bank 1 Sensor 1 Circuit Out Of Range High?
- Extreme weather conditions or driving habits that put stress on the engine can potentially impact the occurrence of this code, but the root cause is typically related to sensor or wiring issues that need attention.
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