AutoCodes – Honda – P1165 1997 Honda Civic

P1165 1997 Honda Civic Code - Air/Fuel Ratio Sensor 1 Circuit Range/Performance

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 Air/Fuel Ratio Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 circuit poor electrical connection, Faulty Air/Fuel Ratio Sensor 1. 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: P1165 1997 Honda Civic indicates Air/Fuel Ratio Sensor 1 Circuit Range/Performance.
Common causes: Common causes include Air/Fuel Ratio Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 circuit poor electrical connection, Faulty Air/Fuel Ratio Sensor 1.
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 2,110

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 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1165 1997 Honda Civic 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 P1165 1997 Honda Civic - Air/Fuel Ratio Sensor 1 Circuit Range/Performance - AutoCodes.com — P1165 1997 Honda Civic Code - Air/Fuel Ratio Sensor 1 Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P1165 1997 Honda Civic?

Air/Fuel Ratio Sensor 1 harness is open or shorted
Air/Fuel Ratio Sensor 1 circuit poor electrical connection
Faulty Air/Fuel Ratio Sensor 1

How to Fix the DTC P1165 1997 Honda Civic?

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 P1165 1997 Honda Civic 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 P1165 1997 Honda Civic code?

Need more information on how to fix the P1165 1997 Honda Civic code? Get Access to Factory Service Manuals

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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 P1165 1997 Honda Civic Code

1. What are the common symptoms of OBDII code P1165 in a 1997 Honda Civic?

The common symptoms of OBDII code P1165 in a 1997 Honda Civic may include poor fuel economy, rough idle, hesitation or stalling while driving, and an illuminated check engine light.

2. What does the OBDII code P1165 on a 1997 Honda Civic indicate?

OBDII code P1165 on a 1997 Honda Civic indicates an issue with the Air/Fuel Ratio Sensor 1 Circuit Range/Performance.

3. What are the possible causes of OBDII code P1165 in a 1997 Honda Civic?

Possible causes of OBDII code P1165 in a 1997 Honda Civic include a faulty air/fuel ratio sensor, wiring or connector issues, vacuum leaks, exhaust system leaks, or a problem with the engine's fuel system.

4. How can I diagnose the cause of OBDII code P1165 in my 1997 Honda Civic?

Diagnosing the cause of OBDII code P1165 in a 1997 Honda Civic may involve performing a visual inspection of the sensor and its wiring, checking for vacuum leaks, conducting a fuel pressure test, and using a scan tool to monitor sensor data.

5. Can I continue driving my 1997 Honda Civic with OBDII code P1165?

It is not recommended to continue driving your 1997 Honda Civic with OBDII code P1165, as it can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter.

6. How can I repair OBDII code P1165 in my 1997 Honda Civic?

Repairing OBDII code P1165 in a 1997 Honda Civic may involve replacing the air/fuel ratio sensor, repairing any damaged wiring or connectors, fixing vacuum leaks, or addressing any other underlying issues identified during diagnosis.

7. Is it possible to reset OBDII code P1165 in a 1997 Honda Civic without fixing the underlying issue?

While you can clear the code with a scan tool, it will likely reappear if the underlying issue causing OBDII code P1165 in your 1997 Honda Civic is not addressed.

8. How much does it cost to repair OBDII code P1165 in a 1997 Honda Civic at a mechanic?

The cost to repair OBDII code P1165 in a 1997 Honda Civic at a mechanic can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more.

9. Can a DIY enthusiast fix OBDII code P1165 in a 1997 Honda Civic?

A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P1165 in a 1997 Honda Civic, especially if the issue is related to replacing the air/fuel ratio sensor or repairing wiring connections.

10. How often does OBDII code P1165 occur in a 1997 Honda Civic?

OBDII code P1165 in a 1997 Honda Civic can occur due to various reasons but is not considered a common code. Proper maintenance and timely repairs can help prevent this code from appearing.