AutoCodes – Honda – P1168 1996 Honda Civic

P1168 1996 Honda Civic Code - Air/Fuel Ratio Sensor Label Low Voltage

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, Air Fuel Ratio Sensor harness is open or shorted, Air Fuel Ratio Sensor 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: P1168 1996 Honda Civic indicates Air/Fuel Ratio Sensor Label Low Voltage.
Common causes: Common causes include Faulty Air Fuel Ratio Sensor, Air Fuel Ratio Sensor harness is open or shorted, Air Fuel Ratio Sensor 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 2,630

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 06, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1168 1996 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 P1168 1996 Honda Civic - Air/Fuel Ratio Sensor Label Low Voltage - AutoCodes.com — P1168 1996 Honda Civic Code - Air/Fuel Ratio Sensor Label Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1168 1996 Honda Civic?

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

How to Fix the DTC P1168 1996 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 P1168 1996 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 P1168 1996 Honda Civic code?

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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 P1168 1996 Honda Civic Code

1. What are the common symptoms of OBDII code P1168 on a 1996 Honda Civic?

- Common symptoms include poor fuel efficiency, rough idling, engine hesitation, and illuminated Check Engine light.

2. What are the possible causes of OBDII code P1168 on a 1996 Honda Civic?

- The code P1168 typically indicates a malfunction in the Air/Fuel Ratio Sensor, which could be caused by wiring issues, sensor failure, or an exhaust leak.

3. How can I diagnose OBDII code P1168 on my 1996 Honda Civic?

- Diagnosing code P1168 involves using an OBDII scanner to retrieve the code, checking the wiring and connections to the Air/Fuel Ratio Sensor, and testing the sensor's voltage output.

4. Can I continue driving my 1996 Honda Civic with OBDII code P1168?

- It is not recommended to continue driving with code P1168 as it can lead to poor engine performance and potential damage. It is best to address the issue promptly.

5. How can I repair OBDII code P1168 on my 1996 Honda Civic?

- Repair options include replacing the Air/Fuel Ratio Sensor, repairing any damaged wiring or connections, and fixing any exhaust leaks that may be affecting sensor performance.

6. Are there any DIY tips for fixing OBDII code P1168 on a 1996 Honda Civic?

- While some basic troubleshooting like checking connections and wiring can be done at home, it is recommended to consult a professional for accurate diagnosis and repair of code P1168.

7. How much does it cost to repair OBDII code P1168 on a 1996 Honda Civic?

- The cost of repairing code P1168 can vary depending on the exact cause of the issue, but it may range from $200 to $500 for parts and labor at a repair shop.

8. Can a faulty Air/Fuel Ratio Sensor cause OBDII code P1168 on a 1996 Honda Civic?

- Yes, a malfunctioning Air/Fuel Ratio Sensor is a common cause of code P1168, as it may not be providing the correct voltage signal to the engine control module.

9. Will resetting the Check Engine light clear OBDII code P1168 on a 1996 Honda Civic?

- Resetting the Check Engine light may temporarily clear the code, but it will likely return if the underlying issue causing code P1168 is not addressed and fixed.

10. Is it safe to drive a 1996 Honda Civic with a faulty Air/Fuel Ratio Sensor triggering OBDII code P1168?

- Driving with a malfunctioning Air/Fuel Ratio Sensor can lead to decreased fuel efficiency and potential engine performance issues, so it's best to address the problem promptly to ensure safe driving.